4392090 has 32 divisors (see below), whose sum is σ = 11712960. Its totient is φ = 1171152.

The previous prime is 4392077. The next prime is 4392107. The reversal of 4392090 is 902934.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 7864 + ... + 8403.

It is an arithmetic number, because the mean of its divisors is an integer number (366030).

Almost surely, 2^4392090 is an apocalyptic number.

4392090 is an abundant number, since it is smaller than the sum of its proper divisors (7320870).

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

4392090 is a wasteful number, since it uses less digits than its factorization.

4392090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16283 (or 16277 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 4392090 is about 2095.7313759163. The cubic root of 4392090 is about 163.7660008061.

The spelling of 4392090 in words is "four million, three hundred ninety-two thousand, ninety".