1317492 has 48 divisors (see below), whose sum is σ = 3729600. Its totient is φ = 398880.

The previous prime is 1317487. The next prime is 1317493. The reversal of 1317492 is 2947131.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 634 + ... + 1742.

It is an arithmetic number, because the mean of its divisors is an integer number (77700).

2^1317492 is an apocalyptic number.

1317492 is a gapful number since it is divisible by the number (12) 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 1317492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1864800).

1317492 is an abundant number, since it is smaller than the sum of its proper divisors (2412108).

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

1317492 is a wasteful number, since it uses less digits than its factorization.

1317492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133 (or 1125 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 1317492 is about 1147.8205434649. The cubic root of 1317492 is about 109.6266127855.

The spelling of 1317492 in words is "one million, three hundred seventeen thousand, four hundred ninety-two".