280233948 has 12 divisors (see below), whose sum is σ = 653879240. Its totient is φ = 93411312.

The previous prime is 280233929. The next prime is 280233977. The reversal of 280233948 is 849332082.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×280233948² = 157062131223333408, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11676403 + ... + 11676426.

Almost surely, 2^280233948 is an apocalyptic number.

It is an amenable number.

280233948 is an abundant number, since it is smaller than the sum of its proper divisors (373645292).

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

280233948 is a wasteful number, since it uses less digits than its factorization.

280233948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23352836 (or 23352834 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 280233948 is about 16740.1896046610. The cubic root of 280233948 is about 654.3954159396.

The spelling of 280233948 in words is "two hundred eighty million, two hundred thirty-three thousand, nine hundred forty-eight".