3890390 has 32 divisors (see below), whose sum is σ = 8078400. Its totient is φ = 1321344.

The previous prime is 3890387. The next prime is 3890417. The reversal of 3890390 is 930983.

It is a congruent number.

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, 10244 + ... + 10616.

It is an arithmetic number, because the mean of its divisors is an integer number (252450).

Almost surely, 2^3890390 is an apocalyptic number.

3890390 is an abundant number, since it is smaller than the sum of its proper divisors (4188010).

3890390 is a wasteful number, since it uses less digits than its factorization.

3890390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 3890390 is about 1972.4071587783. The cubic root of 3890390 is about 157.2766970730.

The spelling of 3890390 in words is "three million, eight hundred ninety thousand, three hundred ninety".