1316040 has 64 divisors (see below), whose sum is σ = 4311360. Its totient is φ = 318720.

The previous prime is 1316039. The next prime is 1316041. The reversal of 1316040 is 406131.

1316040 = T₂₁₉ + T₂₂₀ + ... + T₂₆₃.

It is an interprime number because it is at equal distance from previous prime (1316039) and next prime (1316041).

It is a super-2 number, since 2×1316040² = 3463922563200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 822 + ... + 1818.

It is an arithmetic number, because the mean of its divisors is an integer number (67365).

2^1316040 is an apocalyptic number.

1316040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1316040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2155680).

1316040 is an abundant number, since it is smaller than the sum of its proper divisors (2995320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1316040 is a wasteful number, since it uses less digits than its factorization.

1316040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022 (or 1018 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1316040 is about 1147.1878660446. The cubic root of 1316040 is about 109.5863250383.

Subtracting from 1316040 its reverse (406131), we obtain a palindrome (909909).

The spelling of 1316040 in words is "one million, three hundred sixteen thousand, forty".