3924990 has 32 divisors (see below), whose sum is σ = 10467360. Its totient is φ = 1046592.

The previous prime is 3924959. The next prime is 3925013. The reversal of 3924990 is 994293.

3924990 = 884² + 885² + ... + 888².

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6999 + ... + 7538.

It is an arithmetic number, because the mean of its divisors is an integer number (327105).

Almost surely, 2^3924990 is an apocalyptic number.

3924990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3924990 is an abundant number, since it is smaller than the sum of its proper divisors (6542370).

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

3924990 is a wasteful number, since it uses less digits than its factorization.

3924990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14553 (or 14547 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 3924990 is about 1981.1587518420. The cubic root of 3924990 is about 157.7415793805.

The spelling of 3924990 in words is "three million, nine hundred twenty-four thousand, nine hundred ninety".