1315740 has 24 divisors (see below), whose sum is σ = 3684240. Its totient is φ = 350848.

The previous prime is 1315729. The next prime is 1315747. The reversal of 1315740 is 475131.

It is a super-3 number, since 3×1315740³ = 6833315745561672000, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10905 + ... + 11024.

It is an arithmetic number, because the mean of its divisors is an integer number (153510).

2^1315740 is an apocalyptic number.

1315740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1315740 is an abundant number, since it is smaller than the sum of its proper divisors (2368500).

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

1315740 is a wasteful number, since it uses less digits than its factorization.

1315740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21941 (or 21939 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 1315740 is about 1147.0571040711. The cubic root of 1315740 is about 109.5779974302.

It can be divided in two parts, 13 and 15740, that added together give a triangular number (15753 = T₁₇₇).

The spelling of 1315740 in words is "one million, three hundred fifteen thousand, seven hundred forty".