32981090 has 16 divisors (see below), whose sum is σ = 59451840. Its totient is φ = 13173360.

The previous prime is 32981089. The next prime is 32981099. The reversal of 32981090 is 9018923.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (32981099) 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, 6425 + ... + 10355.

It is an arithmetic number, because the mean of its divisors is an integer number (3715740).

Almost surely, 2^32981090 is an apocalyptic number.

32981090 is a deficient number, since it is larger than the sum of its proper divisors (26470750).

32981090 is a wasteful number, since it uses less digits than its factorization.

32981090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4777.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 32981090 is about 5742.9165064451. The cubic root of 32981090 is about 320.6921541476.

The spelling of 32981090 in words is "thirty-two million, nine hundred eighty-one thousand, ninety".