285790552 has 16 divisors (see below), whose sum is σ = 564060600. Its totient is φ = 135374400.

The previous prime is 285790537. The next prime is 285790559. The reversal of 285790552 is 255097582.

It is a super-2 number, since 2×285790552² = 163352479224929408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 285790499 and 285790508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285790559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 939949 + ... + 940252.

Almost surely, 2^285790552 is an apocalyptic number.

It is an amenable number.

285790552 is a deficient number, since it is larger than the sum of its proper divisors (278270048).

285790552 is a wasteful number, since it uses less digits than its factorization.

285790552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1880226 (or 1880222 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 43.

The square root of 285790552 is about 16905.3409311969. The cubic root of 285790552 is about 658.6923542700.

The spelling of 285790552 in words is "two hundred eighty-five million, seven hundred ninety thousand, five hundred fifty-two".