386474816 has 56 divisors (see below), whose sum is σ = 943904640. Its totient is φ = 152888832.

The previous prime is 386474813. The next prime is 386474831. The reversal of 386474816 is 618474683.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386474813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27356 + ... + 39003.

It is an arithmetic number, because the mean of its divisors is an integer number (16855440).

Almost surely, 2^386474816 is an apocalyptic number.

It is an amenable number.

386474816 is an abundant number, since it is smaller than the sum of its proper divisors (557429824).

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

386474816 is a wasteful number, since it uses less digits than its factorization.

386474816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66391 (or 66381 counting only the distinct ones).

The product of its digits is 774144, while the sum is 47.

The square root of 386474816 is about 19658.9627396768. The cubic root of 386474816 is about 728.4063665323.

The spelling of 386474816 in words is "three hundred eighty-six million, four hundred seventy-four thousand, eight hundred sixteen".