388960406 has 8 divisors (see below), whose sum is σ = 608807664. Its totient is φ = 186024520.

The previous prime is 388960367. The next prime is 388960421. The reversal of 388960406 is 604069883.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4227785 + ... + 4227876.

It is an arithmetic number, because the mean of its divisors is an integer number (76100958).

Almost surely, 2^388960406 is an apocalyptic number.

388960406 is a deficient number, since it is larger than the sum of its proper divisors (219847258).

388960406 is a wasteful number, since it uses less digits than its factorization.

388960406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8455686.

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 388960406 is about 19722.0791500288. The cubic root of 388960406 is about 729.9645982707.

The spelling of 388960406 in words is "three hundred eighty-eight million, nine hundred sixty thousand, four hundred six".