3138690 has 16 divisors (see below), whose sum is σ = 7532928. Its totient is φ = 836976.

The previous prime is 3138671. The next prime is 3138691. The reversal of 3138690 is 968313.

3138690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3138690² = 19702749832200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 104623 = 3138690 / (3 + 1 + 3 + 8 + 6 + 9 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52282 + ... + 52341.

It is an arithmetic number, because the mean of its divisors is an integer number (470808).

Almost surely, 2^3138690 is an apocalyptic number.

3138690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3138690 is an abundant number, since it is smaller than the sum of its proper divisors (4394238).

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

3138690 is a wasteful number, since it uses less digits than its factorization.

3138690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104633.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 3138690 is about 1771.6348382215. The cubic root of 3138690 is about 146.4140681933.

It can be divided in two parts, 3138 and 690, that added together give a triangular number (3828 = T₈₇).

The spelling of 3138690 in words is "three million, one hundred thirty-eight thousand, six hundred ninety".