285838464 has 32 divisors (see below), whose sum is σ = 759259440. Its totient is φ = 95279360.

The previous prime is 285838433. The next prime is 285838499. The reversal of 285838464 is 464838582.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 371802 + ... + 372569.

Almost surely, 2^285838464 is an apocalyptic number.

285838464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

285838464 is an abundant number, since it is smaller than the sum of its proper divisors (473420976).

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

285838464 is an equidigital number, since it uses as much as digits as its factorization.

285838464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744388 (or 744376 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 48.

The square root of 285838464 is about 16906.7579387652. The cubic root of 285838464 is about 658.7291615337.

The spelling of 285838464 in words is "two hundred eighty-five million, eight hundred thirty-eight thousand, four hundred sixty-four".