388271406 has 32 divisors (see below), whose sum is σ = 789143040. Its totient is φ = 127339776.

The previous prime is 388271393. The next prime is 388271413. The reversal of 388271406 is 604172883.

It is a congruent number.

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, 102315 + ... + 106041.

It is an arithmetic number, because the mean of its divisors is an integer number (24660720).

Almost surely, 2^388271406 is an apocalyptic number.

388271406 is an abundant number, since it is smaller than the sum of its proper divisors (400871634).

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

388271406 is a wasteful number, since it uses less digits than its factorization.

388271406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4008.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 388271406 is about 19704.6036752836. The cubic root of 388271406 is about 729.5333265493.

The spelling of 388271406 in words is "three hundred eighty-eight million, two hundred seventy-one thousand, four hundred six".