32400452 has 12 divisors (see below), whose sum is σ = 64800960. Its totient is φ = 13885896.

The previous prime is 32400449. The next prime is 32400479. The reversal of 32400452 is 25400423.

32400452 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578552 + ... + 578607.

It is an arithmetic number, because the mean of its divisors is an integer number (5400080).

Almost surely, 2^32400452 is an apocalyptic number.

It is an amenable number.

32400452 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

32400452 is a wasteful number, since it uses less digits than its factorization.

32400452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157170 (or 1157168 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 32400452 is about 5692.1394923175. The cubic root of 32400452 is about 318.7990532222.

Adding to 32400452 its reverse (25400423), we get a palindrome (57800875).

The spelling of 32400452 in words is "thirty-two million, four hundred thousand, four hundred fifty-two".