388774080 has 280 divisors, whose sum is σ = 1414009872. Its totient is φ = 101357568.

The previous prime is 388774073. The next prime is 388774081. The reversal of 388774080 is 80477883.

It is a super-2 number, since 2×388774080² = 302290570559692800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (388774081) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1373619 + ... + 1373901.

Almost surely, 2^388774080 is an apocalyptic number.

388774080 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 388774080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (707004936).

388774080 is an abundant number, since it is smaller than the sum of its proper divisors (1025235792).

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

388774080 is a wasteful number, since it uses less digits than its factorization.

388774080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 388774080 is about 19717.3547921622. The cubic root of 388774080 is about 729.8480199030.

The spelling of 388774080 in words is "three hundred eighty-eight million, seven hundred seventy-four thousand, eighty".