385478406 has 16 divisors (see below), whose sum is σ = 856618800. Its totient is φ = 128492784.

The previous prime is 385478341. The next prime is 385478449. The reversal of 385478406 is 604874583.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3569191 + ... + 3569298.

It is an arithmetic number, because the mean of its divisors is an integer number (53538675).

Almost surely, 2^385478406 is an apocalyptic number.

385478406 is an abundant number, since it is smaller than the sum of its proper divisors (471140394).

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

385478406 is a wasteful number, since it uses less digits than its factorization.

385478406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7138500 (or 7138494 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 385478406 is about 19633.6039992662. The cubic root of 385478406 is about 727.7798349550.

The spelling of 385478406 in words is "three hundred eighty-five million, four hundred seventy-eight thousand, four hundred six".