3771396720 has 480 divisors, whose sum is σ = 16279583040. Its totient is φ = 795432960.

The previous prime is 3771396653. The next prime is 3771396731. The reversal of 3771396720 is 276931773.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1374550 + ... + 1377290.

It is an arithmetic number, because the mean of its divisors is an integer number (33915798).

Almost surely, 2^3771396720 is an apocalyptic number.

3771396720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3771396720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8139791520).

3771396720 is an abundant number, since it is smaller than the sum of its proper divisors (12508186320).

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

3771396720 is a wasteful number, since it uses less digits than its factorization.

3771396720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2790 (or 2771 counting only the distinct ones).

The product of its (nonzero) digits is 333396, while the sum is 45.

The square root of 3771396720 is about 61411.6985598021. The cubic root of 3771396720 is about 1556.5655211612.

The spelling of 3771396720 in words is "three billion, seven hundred seventy-one million, three hundred ninety-six thousand, seven hundred twenty".