396126720 has 320 divisors, whose sum is σ = 1537937280. Its totient is φ = 95846400.

The previous prime is 396126701. The next prime is 396126737. The reversal of 396126720 is 27621693.

396126720 is a `hidden beast` number, since 39 + 612 + 6 + 7 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 760060 + ... + 760580.

It is an arithmetic number, because the mean of its divisors is an integer number (4806054).

Almost surely, 2^396126720 is an apocalyptic number.

396126720 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 396126720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (768968640).

396126720 is an abundant number, since it is smaller than the sum of its proper divisors (1141810560).

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

396126720 is a wasteful number, since it uses less digits than its factorization.

396126720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564 (or 542 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 396126720 is about 19902.9324472551. The cubic root of 396126720 is about 734.4203676696.

The spelling of 396126720 in words is "three hundred ninety-six million, one hundred twenty-six thousand, seven hundred twenty".