388971476 has 6 divisors (see below), whose sum is σ = 680700090. Its totient is φ = 194485736.

The previous prime is 388971467. The next prime is 388971533. The reversal of 388971476 is 674179883.

It can be written as a sum of positive squares in only one way, i.e., 343138576 + 45832900 = 18524^2 + 6770^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48621431 + ... + 48621438.

It is an arithmetic number, because the mean of its divisors is an integer number (113450015).

Almost surely, 2^388971476 is an apocalyptic number.

It is an amenable number.

388971476 is a deficient number, since it is larger than the sum of its proper divisors (291728614).

388971476 is a wasteful number, since it uses less digits than its factorization.

388971476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97242873 (or 97242871 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 53.

The square root of 388971476 is about 19722.3597979552. The cubic root of 388971476 is about 729.9715232527.

The spelling of 388971476 in words is "three hundred eighty-eight million, nine hundred seventy-one thousand, four hundred seventy-six".