385400264 has 8 divisors (see below), whose sum is σ = 722625510. Its totient is φ = 192700128.

The previous prime is 385400263. The next prime is 385400273. The reversal of 385400264 is 462004583.

It can be written as a sum of positive squares in only one way, i.e., 340107364 + 45292900 = 18442^2 + 6730^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 385400264.

It is not an unprimeable number, because it can be changed into a prime (385400263) by changing a digit.

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, 24087509 + ... + 24087524.

Almost surely, 2^385400264 is an apocalyptic number.

It is an amenable number.

385400264 is a deficient number, since it is larger than the sum of its proper divisors (337225246).

385400264 is a wasteful number, since it uses less digits than its factorization.

385400264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48175039 (or 48175035 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 385400264 is about 19631.6138918837. The cubic root of 385400264 is about 727.7306544958.

The spelling of 385400264 in words is "three hundred eighty-five million, four hundred thousand, two hundred sixty-four".