3890940 has 24 divisors (see below), whose sum is σ = 10894800. Its totient is φ = 1037568.

The previous prime is 3890927. The next prime is 3890951. The reversal of 3890940 is 490983.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32365 + ... + 32484.

It is an arithmetic number, because the mean of its divisors is an integer number (453950).

Almost surely, 2^3890940 is an apocalyptic number.

3890940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3890940 is an abundant number, since it is smaller than the sum of its proper divisors (7003860).

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

3890940 is a wasteful number, since it uses less digits than its factorization.

3890940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64861 (or 64859 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 3890940 is about 1972.5465773968. The cubic root of 3890940 is about 157.2841083357.

The spelling of 3890940 in words is "three million, eight hundred ninety thousand, nine hundred forty".