285027948 has 18 divisors (see below), whose sum is σ = 720487404. Its totient is φ = 95009304.

The previous prime is 285027943. The next prime is 285027961. The reversal of 285027948 is 849720582.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×285027948² = 162481862282181408, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (285027943) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3958686 + ... + 3958757.

It is an arithmetic number, because the mean of its divisors is an integer number (40027078).

Almost surely, 2^285027948 is an apocalyptic number.

It is an amenable number.

285027948 is an abundant number, since it is smaller than the sum of its proper divisors (435459456).

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

285027948 is a wasteful number, since it uses less digits than its factorization.

285027948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7917453 (or 7917448 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 285027948 is about 16882.7707441640. The cubic root of 285027948 is about 658.1059471004.

The spelling of 285027948 in words is "two hundred eighty-five million, twenty-seven thousand, nine hundred forty-eight".