388700144 has 30 divisors (see below), whose sum is σ = 876064464. Its totient is φ = 166585440.

The previous prime is 388700101. The next prime is 388700149. The reversal of 388700144 is 441007883.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388700149) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 247112 + ... + 248679.

Almost surely, 2^388700144 is an apocalyptic number.

It is an amenable number.

388700144 is an abundant number, since it is smaller than the sum of its proper divisors (487364320).

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

388700144 is a wasteful number, since it uses less digits than its factorization.

388700144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495813 (or 495800 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 388700144 is about 19715.4798064871. The cubic root of 388700144 is about 729.8017501309.

The spelling of 388700144 in words is "three hundred eighty-eight million, seven hundred thousand, one hundred forty-four".