285383100 has 36 divisors (see below), whose sum is σ = 825709304. Its totient is φ = 76102080.

The previous prime is 285383093. The next prime is 285383167. The reversal of 285383100 is 1383582.

It is a happy number.

It is a super-2 number, since 2×285383100² = 162887027531220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 475339 + ... + 475938.

Almost surely, 2^285383100 is an apocalyptic number.

285383100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285383100 is an abundant number, since it is smaller than the sum of its proper divisors (540326204).

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

285383100 is a wasteful number, since it uses less digits than its factorization.

285383100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951294 (or 951287 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 285383100 is about 16893.2856484462. The cubic root of 285383100 is about 658.3791725101.

The spelling of 285383100 in words is "two hundred eighty-five million, three hundred eighty-three thousand, one hundred".