4392290 has 32 divisors (see below), whose sum is σ = 9569664. Its totient is φ = 1416960.

The previous prime is 4392281. The next prime is 4392313. The reversal of 4392290 is 922934.

It is a super-2 number, since 2×4392290² = 38584422888200, which contains 22 as substring.

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, 656 + ... + 3035.

It is an arithmetic number, because the mean of its divisors is an integer number (299052).

Almost surely, 2^4392290 is an apocalyptic number.

4392290 is an abundant number, since it is smaller than the sum of its proper divisors (5177374).

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

4392290 is a wasteful number, since it uses less digits than its factorization.

4392290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3722.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 4392290 is about 2095.7790914121. The cubic root of 4392290 is about 163.7684865402.

The spelling of 4392290 in words is "four million, three hundred ninety-two thousand, two hundred ninety".