3874390 has 16 divisors (see below), whose sum is σ = 7510608. Its totient is φ = 1430496.

The previous prime is 3874379. The next prime is 3874391. The reversal of 3874390 is 934783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3874391) 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, 14772 + ... + 15031.

It is an arithmetic number, because the mean of its divisors is an integer number (469413).

Almost surely, 2^3874390 is an apocalyptic number.

3874390 is a deficient number, since it is larger than the sum of its proper divisors (3636218).

3874390 is a wasteful number, since it uses less digits than its factorization.

3874390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29823.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 3874390 is about 1968.3470222499. The cubic root of 3874390 is about 157.0607902851.

The spelling of 3874390 in words is "three million, eight hundred seventy-four thousand, three hundred ninety".