3120690 has 64 divisors (see below), whose sum is σ = 8242560. Its totient is φ = 752640.

The previous prime is 3120671. The next prime is 3120697. The reversal of 3120690 is 960213.

It is a super-2 number, since 2×3120690² = 19477412152200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3120697) 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 31 ways as a sum of consecutive naturals, for example, 14685 + ... + 14895.

It is an arithmetic number, because the mean of its divisors is an integer number (128790).

Almost surely, 2^3120690 is an apocalyptic number.

3120690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3120690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4121280).

3120690 is an abundant number, since it is smaller than the sum of its proper divisors (5121870).

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

3120690 is a wasteful number, since it uses less digits than its factorization.

3120690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 3120690 is about 1766.5474802563. The cubic root of 3120690 is about 146.1336425656.

The spelling of 3120690 in words is "three million, one hundred twenty thousand, six hundred ninety".