285613140 has 24 divisors (see below), whose sum is σ = 799716960. Its totient is φ = 76163488.

The previous prime is 285613127. The next prime is 285613217. The reversal of 285613140 is 41316582.

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

It is a junction number, because it is equal to n+sod(n) for n = 285613098 and 285613107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2380050 + ... + 2380169.

It is an arithmetic number, because the mean of its divisors is an integer number (33321540).

Almost surely, 2^285613140 is an apocalyptic number.

285613140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285613140 is an abundant number, since it is smaller than the sum of its proper divisors (514103820).

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

285613140 is a wasteful number, since it uses less digits than its factorization.

285613140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4760231 (or 4760229 counting only the distinct ones).

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

The square root of 285613140 is about 16900.0928991530. The cubic root of 285613140 is about 658.5560258566.

The spelling of 285613140 in words is "two hundred eighty-five million, six hundred thirteen thousand, one hundred forty".