388373040 has 120 divisors (see below), whose sum is σ = 1422886608. Its totient is φ = 94149120.

The previous prime is 388373039. The next prime is 388373047. The reversal of 388373040 is 40373883.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 388372986 and 388373004.

It is not an unprimeable number, because it can be changed into a prime (388373047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16599 + ... + 32438.

Almost surely, 2^388373040 is an apocalyptic number.

388373040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

388373040 is an abundant number, since it is smaller than the sum of its proper divisors (1034513568).

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

388373040 is a wasteful number, since it uses less digits than its factorization.

388373040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49067 (or 49058 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 388373040 is about 19707.1824470166. The cubic root of 388373040 is about 729.5969752587.

The spelling of 388373040 in words is "three hundred eighty-eight million, three hundred seventy-three thousand, forty".