285407955 has 40 divisors (see below), whose sum is σ = 584714592. Its totient is φ = 130470912.

The previous prime is 285407933. The next prime is 285407963. The reversal of 285407955 is 559704582.

It is not a de Polignac number, because 285407955 - 2⁶ = 285407891 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 285407955.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 47502 + ... + 53171.

Almost surely, 2^285407955 is an apocalyptic number.

285407955 is an abundant number, since it is smaller than the sum of its proper divisors (299306637).

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

285407955 is a wasteful number, since it uses less digits than its factorization.

285407955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100697 (or 100688 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 45.

The square root of 285407955 is about 16894.0212797309. The cubic root of 285407955 is about 658.3982854607.

The spelling of 285407955 in words is "two hundred eighty-five million, four hundred seven thousand, nine hundred fifty-five".