389277900 has 360 divisors, whose sum is σ = 1463250096. Its totient is φ = 88473600.

The previous prime is 389277887. The next prime is 389277961. The reversal of 389277900 is 9772983.

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 119 ways as a sum of consecutive naturals, for example, 1514572 + ... + 1514828.

Almost surely, 2^389277900 is an apocalyptic number.

389277900 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 389277900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (731625048).

389277900 is an abundant number, since it is smaller than the sum of its proper divisors (1073972196).

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

389277900 is a wasteful number, since it uses less digits than its factorization.

389277900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 389277900 is about 19730.1267101861. The cubic root of 389277900 is about 730.1631586265.

The spelling of 389277900 in words is "three hundred eighty-nine million, two hundred seventy-seven thousand, nine hundred".