385428916 has 6 divisors (see below), whose sum is σ = 674500610. Its totient is φ = 192714456.

The previous prime is 385428893. The next prime is 385428929. The reversal of 385428916 is 619824583.

It can be written as a sum of positive squares in only one way, i.e., 315204516 + 70224400 = 17754^2 + 8380^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48178611 + ... + 48178618.

Almost surely, 2^385428916 is an apocalyptic number.

It is an amenable number.

385428916 is a deficient number, since it is larger than the sum of its proper divisors (289071694).

385428916 is a wasteful number, since it uses less digits than its factorization.

385428916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96357233 (or 96357231 counting only the distinct ones).

The product of its digits is 414720, while the sum is 46.

The square root of 385428916 is about 19632.3436196497. The cubic root of 385428916 is about 727.7486880607.

The spelling of 385428916 in words is "three hundred eighty-five million, four hundred twenty-eight thousand, nine hundred sixteen".