32406990 has 64 divisors (see below), whose sum is σ = 96975360. Its totient is φ = 6733440.

The previous prime is 32406967. The next prime is 32406991. The reversal of 32406990 is 9960423.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32406991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4705 + ... + 9324.

It is an arithmetic number, because the mean of its divisors is an integer number (1515240).

Almost surely, 2^32406990 is an apocalyptic number.

32406990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

32406990 is an abundant number, since it is smaller than the sum of its proper divisors (64568370).

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

32406990 is a wasteful number, since it uses less digits than its factorization.

32406990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14057.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 32406990 is about 5692.7137641023. The cubic root of 32406990 is about 318.8204949810.

The spelling of 32406990 in words is "thirty-two million, four hundred six thousand, nine hundred ninety".