3918490 has 16 divisors (see below), whose sum is σ = 7153920. Its totient is φ = 1545040.

The previous prime is 3918443. The next prime is 3918491. The reversal of 3918490 is 948193.

It is not an unprimeable number, because it can be changed into a prime (3918491) 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, 2050 + ... + 3469.

It is an arithmetic number, because the mean of its divisors is an integer number (447120).

Almost surely, 2^3918490 is an apocalyptic number.

3918490 is a deficient number, since it is larger than the sum of its proper divisors (3235430).

3918490 is a wasteful number, since it uses less digits than its factorization.

3918490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5597.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 3918490 is about 1979.5176180070. The cubic root of 3918490 is about 157.6544550156.

It can be divided in two parts, 3918 and 490, that multiplied together give a triangular number (1919820 = T₁₉₅₉).

The spelling of 3918490 in words is "three million, nine hundred eighteen thousand, four hundred ninety".