389077776 has 160 divisors (see below), whose sum is σ = 1221350400. Its totient is φ = 118056960.

The previous prime is 389077757. The next prime is 389077811. The reversal of 389077776 is 677770983.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 226810 + ... + 228518.

It is an arithmetic number, because the mean of its divisors is an integer number (7633440).

Almost surely, 2^389077776 is an apocalyptic number.

389077776 is a gapful number since it is divisible by the number (36) 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 389077776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (610675200).

389077776 is an abundant number, since it is smaller than the sum of its proper divisors (832272624).

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

389077776 is a wasteful number, since it uses less digits than its factorization.

389077776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774 (or 1762 counting only the distinct ones).

The product of its (nonzero) digits is 3111696, while the sum is 54.

The square root of 389077776 is about 19725.0545246395. The cubic root of 389077776 is about 730.0380139083.

The spelling of 389077776 in words is "three hundred eighty-nine million, seventy-seven thousand, seven hundred seventy-six".