387770880 has 160 divisors (see below), whose sum is σ = 1416945024. Its totient is φ = 88621056.

The previous prime is 387770863. The next prime is 387770893. The reversal of 387770880 is 88077783.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50154 + ... + 57366.

Almost surely, 2^387770880 is an apocalyptic number.

387770880 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 387770880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (708472512).

387770880 is an abundant number, since it is smaller than the sum of its proper divisors (1029174144).

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

387770880 is an equidigital number, since it uses as much as digits as its factorization.

387770880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7246 (or 7230 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 48.

The square root of 387770880 is about 19691.8988419096. The cubic root of 387770880 is about 729.2197079384.

The spelling of 387770880 in words is "three hundred eighty-seven million, seven hundred seventy thousand, eight hundred eighty".