3890740 has 24 divisors (see below), whose sum is σ = 9338112. Its totient is φ = 1333920.

The previous prime is 3890737. The next prime is 3890743. The reversal of 3890740 is 470983.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3890737) and next prime (3890743).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3890743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13756 + ... + 14035.

It is an arithmetic number, because the mean of its divisors is an integer number (389088).

Almost surely, 2^3890740 is an apocalyptic number.

It is an amenable number.

3890740 is an abundant number, since it is smaller than the sum of its proper divisors (5447372).

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

3890740 is a wasteful number, since it uses less digits than its factorization.

3890740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27807 (or 27805 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 3890740 is about 1972.4958808575. The cubic root of 3890740 is about 157.2814134119.

The spelling of 3890740 in words is "three million, eight hundred ninety thousand, seven hundred forty".