280527432 has 48 divisors (see below), whose sum is σ = 724731120. Its totient is φ = 90485280.

The previous prime is 280527431. The next prime is 280527433. The reversal of 280527432 is 234725082.

It is an interprime number because it is at equal distance from previous prime (280527431) and next prime (280527433).

It is a junction number, because it is equal to n+sod(n) for n = 280527393 and 280527402.

It is not an unprimeable number, because it can be changed into a prime (280527431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16983 + ... + 29145.

It is an arithmetic number, because the mean of its divisors is an integer number (15098565).

Almost surely, 2^280527432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 280527432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362365560).

280527432 is an abundant number, since it is smaller than the sum of its proper divisors (444203688).

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

280527432 is a wasteful number, since it uses less digits than its factorization.

280527432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12234 (or 12199 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 280527432 is about 16748.9531613173. The cubic root of 280527432 is about 654.6237817741.

The spelling of 280527432 in words is "two hundred eighty million, five hundred twenty-seven thousand, four hundred thirty-two".