388156416 has 88 divisors (see below), whose sum is σ = 1070499120. Its totient is φ = 124895232.

The previous prime is 388156397. The next prime is 388156423. The reversal of 388156416 is 614651883.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86910 + ... + 91266.

Almost surely, 2^388156416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 388156416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (535249560).

388156416 is an abundant number, since it is smaller than the sum of its proper divisors (682342704).

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

388156416 is a wasteful number, since it uses less digits than its factorization.

388156416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4409 (or 4391 counting only the distinct ones).

The product of its digits is 138240, while the sum is 42.

The square root of 388156416 is about 19701.6856131652. The cubic root of 388156416 is about 729.4613001963.

The spelling of 388156416 in words is "three hundred eighty-eight million, one hundred fifty-six thousand, four hundred sixteen".