3151668 has 48 divisors (see below), whose sum is σ = 8043840. Its totient is φ = 954624.

The previous prime is 3151657. The next prime is 3151669. The reversal of 3151668 is 8661513.

It is a super-2 number, since 2×3151668² = 19866022364448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3151669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13771 + ... + 13997.

It is an arithmetic number, because the mean of its divisors is an integer number (167580).

Almost surely, 2^3151668 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 3151668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4021920).

3151668 is an abundant number, since it is smaller than the sum of its proper divisors (4892172).

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

3151668 is a wasteful number, since it uses less digits than its factorization.

3151668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336 (or 334 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 3151668 is about 1775.2937785054. The cubic root of 3151668 is about 146.6155905713.

The spelling of 3151668 in words is "three million, one hundred fifty-one thousand, six hundred sixty-eight".