32975240 has 64 divisors (see below), whose sum is σ = 79781760. Its totient is φ = 12221440.

The previous prime is 32975231. The next prime is 32975249. The reversal of 32975240 is 4257923.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (32975231) and next prime (32975249).

It is a junction number, because it is equal to n+sod(n) for n = 32975197 and 32975206.

It is not an unprimeable number, because it can be changed into a prime (32975249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47939 + ... + 48621.

It is an arithmetic number, because the mean of its divisors is an integer number (1246590).

Almost surely, 2^32975240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32975240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39890880).

32975240 is an abundant number, since it is smaller than the sum of its proper divisors (46806520).

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

32975240 is a wasteful number, since it uses less digits than its factorization.

32975240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782 (or 778 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 32975240 is about 5742.4071607646. The cubic root of 32975240 is about 320.6731921703.

The spelling of 32975240 in words is "thirty-two million, nine hundred seventy-five thousand, two hundred forty".