385692040 has 16 divisors (see below), whose sum is σ = 867807180. Its totient is φ = 154276800.

The previous prime is 385692023. The next prime is 385692053. The reversal of 385692040 is 40296583.

It can be written as a sum of positive squares in 2 ways, for example, as 312794596 + 72897444 = 17686^2 + 8538^2 .

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, 4821111 + ... + 4821190.

Almost surely, 2^385692040 is an apocalyptic number.

It is an amenable number.

385692040 is an abundant number, since it is smaller than the sum of its proper divisors (482115140).

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

385692040 is a wasteful number, since it uses less digits than its factorization.

385692040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9642312 (or 9642308 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 385692040 is about 19639.0437649087. The cubic root of 385692040 is about 727.9142564958.

The spelling of 385692040 in words is "three hundred eighty-five million, six hundred ninety-two thousand, forty".