386875720 has 192 divisors, whose sum is σ = 1152950400. Its totient is φ = 114048000.

The previous prime is 386875717. The next prime is 386875729. The reversal of 386875720 is 27578683.

It is not an unprimeable number, because it can be changed into a prime (386875729) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 643420 + ... + 644020.

It is an arithmetic number, because the mean of its divisors is an integer number (6004950).

Almost surely, 2^386875720 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 386875720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (576475200).

386875720 is an abundant number, since it is smaller than the sum of its proper divisors (766074680).

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

386875720 is a wasteful number, since it uses less digits than its factorization.

386875720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660 (or 645 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 46.

The square root of 386875720 is about 19669.1565655470. The cubic root of 386875720 is about 728.6581467238.

The spelling of 386875720 in words is "three hundred eighty-six million, eight hundred seventy-five thousand, seven hundred twenty".