385680742 has 4 divisors (see below), whose sum is σ = 578521116. Its totient is φ = 192840370.

The previous prime is 385680709. The next prime is 385680769. The reversal of 385680742 is 247086583.

It is a semiprime because it is the product of two primes.

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, 96420184 + ... + 96420187.

It is an arithmetic number, because the mean of its divisors is an integer number (144630279).

Almost surely, 2^385680742 is an apocalyptic number.

385680742 is a deficient number, since it is larger than the sum of its proper divisors (192840374).

385680742 is a wasteful number, since it uses less digits than its factorization.

385680742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192840373.

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 385680742 is about 19638.7561215063. The cubic root of 385680742 is about 727.9071488773.

The spelling of 385680742 in words is "three hundred eighty-five million, six hundred eighty thousand, seven hundred forty-two".