3149620 has 48 divisors (see below), whose sum is σ = 7112448. Its totient is φ = 1168640.

The previous prime is 3149609. The next prime is 3149639. The reversal of 3149620 is 269413.

It is a super-2 number, since 2×3149620² = 19840212288800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18777 + ... + 18943.

It is an arithmetic number, because the mean of its divisors is an integer number (148176).

Almost surely, 2^3149620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3149620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3556224).

3149620 is an abundant number, since it is smaller than the sum of its proper divisors (3962828).

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

3149620 is a wasteful number, since it uses less digits than its factorization.

3149620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 3149620 is about 1774.7168788288. The cubic root of 3149620 is about 146.5838260377.

The spelling of 3149620 in words is "three million, one hundred forty-nine thousand, six hundred twenty".