32405090 has 16 divisors (see below), whose sum is σ = 59571072. Its totient is φ = 12686064.

The previous prime is 32405071. The next prime is 32405099. The reversal of 32405090 is 9050423.

It is not an unprimeable number, because it can be changed into a prime (32405099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34004 + ... + 34943.

It is an arithmetic number, because the mean of its divisors is an integer number (3723192).

Almost surely, 2^32405090 is an apocalyptic number.

32405090 is a deficient number, since it is larger than the sum of its proper divisors (27165982).

32405090 is a wasteful number, since it uses less digits than its factorization.

32405090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69001.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 32405090 is about 5692.5468816690. The cubic root of 32405090 is about 318.8142641156.

The spelling of 32405090 in words is "thirty-two million, four hundred five thousand, ninety".