385475828 has 6 divisors (see below), whose sum is σ = 674582706. Its totient is φ = 192737912.

The previous prime is 385475807. The next prime is 385475863. The reversal of 385475828 is 828574583.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 193154404 + 192321424 = 13898^2 + 13868^2 .

It is a super-2 number, since 2×385475828² = 297183227944571168, which contains 22 as substring.

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, 48184475 + ... + 48184482.

It is an arithmetic number, because the mean of its divisors is an integer number (112430451).

Almost surely, 2^385475828 is an apocalyptic number.

It is an amenable number.

385475828 is a deficient number, since it is larger than the sum of its proper divisors (289106878).

385475828 is a wasteful number, since it uses less digits than its factorization.

385475828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96368961 (or 96368959 counting only the distinct ones).

The product of its digits is 2150400, while the sum is 50.

The square root of 385475828 is about 19633.5383464112. The cubic root of 385475828 is about 727.7782125376.

The spelling of 385475828 in words is "three hundred eighty-five million, four hundred seventy-five thousand, eight hundred twenty-eight".