32397240 has 64 divisors (see below), whose sum is σ = 102915360. Its totient is φ = 8130560.

The previous prime is 32397149. The next prime is 32397251. The reversal of 32397240 is 4279323.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 32397198 and 32397207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5901 + ... + 9980.

Almost surely, 2^32397240 is an apocalyptic number.

32397240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32397240 is an abundant number, since it is smaller than the sum of its proper divisors (70518120).

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

32397240 is a wasteful number, since it uses less digits than its factorization.

32397240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15912 (or 15908 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 32397240 is about 5691.8573418525. The cubic root of 32397240 is about 318.7885182210.

The spelling of 32397240 in words is "thirty-two million, three hundred ninety-seven thousand, two hundred forty".