1497232640 has 36 divisors (see below), whose sum is σ = 3586343124. Its totient is φ = 598892544.

The previous prime is 1497232631. The next prime is 1497232643. The reversal of 1497232640 is 462327941.

It can be written as a sum of positive squares in 2 ways, for example, as 710542336 + 786690304 = 26656^2 + 28048^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1497232594 and 1497232603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1497232643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 583577 + ... + 586136.

Almost surely, 2^1497232640 is an apocalyptic number.

1497232640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1497232640 is an abundant number, since it is smaller than the sum of its proper divisors (2089110484).

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

1497232640 is an equidigital number, since it uses as much as digits as its factorization.

1497232640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169734 (or 1169720 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 1497232640 is about 38694.0905048820. The cubic root of 1497232640 is about 1144.0098455475.

The spelling of 1497232640 in words is "one billion, four hundred ninety-seven million, two hundred thirty-two thousand, six hundred forty".