280113432 has 32 divisors (see below), whose sum is σ = 706714800. Its totient is φ = 92513664.

The previous prime is 280113419. The next prime is 280113439. The reversal of 280113432 is 234311082.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280113439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50923 + ... + 56154.

Almost surely, 2^280113432 is an apocalyptic number.

It is an amenable number.

280113432 is an abundant number, since it is smaller than the sum of its proper divisors (426601368).

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

280113432 is a wasteful number, since it uses less digits than its factorization.

280113432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107195 (or 107191 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 280113432 is about 16736.5896167648. The cubic root of 280113432 is about 654.3015938234.

The spelling of 280113432 in words is "two hundred eighty million, one hundred thirteen thousand, four hundred thirty-two".