32402040 has 64 divisors (see below), whose sum is σ = 106047360. Its totient is φ = 7854720.

The previous prime is 32402039. The next prime is 32402053. The reversal of 32402040 is 4020423.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 10954 + ... + 13593.

It is an arithmetic number, because the mean of its divisors is an integer number (1656990).

Almost surely, 2^32402040 is an apocalyptic number.

32402040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32402040 is an abundant number, since it is smaller than the sum of its proper divisors (73645320).

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

32402040 is a wasteful number, since it uses less digits than its factorization.

32402040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24572 (or 24568 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 32402040 is about 5692.2789812166. The cubic root of 32402040 is about 318.8042614276.

Adding to 32402040 its reverse (4020423), we get a palindrome (36422463).

The spelling of 32402040 in words is "thirty-two million, four hundred two thousand, forty".