3900450 has 24 divisors (see below), whose sum is σ = 9673488. Its totient is φ = 1040080.

The previous prime is 3900439. The next prime is 3900469. The reversal of 3900450 is 540093.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12852 + ... + 13151.

It is an arithmetic number, because the mean of its divisors is an integer number (403062).

Almost surely, 2^3900450 is an apocalyptic number.

3900450 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3900450 is an abundant number, since it is smaller than the sum of its proper divisors (5773038).

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

3900450 is a wasteful number, since it uses less digits than its factorization.

3900450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26018 (or 26013 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 3900450 is about 1974.9556957056. The cubic root of 3900450 is about 157.4121455108.

The spelling of 3900450 in words is "three million, nine hundred thousand, four hundred fifty".