32985890 has 32 divisors (see below), whose sum is σ = 68822784. Its totient is φ = 11148480.

The previous prime is 32985889. The next prime is 32985913. The reversal of 32985890 is 9858923.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

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, 1652 + ... + 8288.

It is an arithmetic number, because the mean of its divisors is an integer number (2150712).

Almost surely, 2^32985890 is an apocalyptic number.

32985890 is an abundant number, since it is smaller than the sum of its proper divisors (35836894).

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

32985890 is a wasteful number, since it uses less digits than its factorization.

32985890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6722.

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 32985890 is about 5743.3343973688. The cubic root of 32985890 is about 320.7077110184.

The spelling of 32985890 in words is "thirty-two million, nine hundred eighty-five thousand, eight hundred ninety".