280542468 has 24 divisors (see below), whose sum is σ = 655258240. Its totient is φ = 93420000.

The previous prime is 280542461. The next prime is 280542469. The reversal of 280542468 is 864245082.

It is a zygodrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (280542461) 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, 1218 + ... + 23718.

Almost surely, 2^280542468 is an apocalyptic number.

It is an amenable number.

280542468 is an abundant number, since it is smaller than the sum of its proper divisors (374715772).

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

280542468 is a wasteful number, since it uses less digits than its factorization.

280542468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23547 (or 23545 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 39.

The square root of 280542468 is about 16749.4020191767. The cubic root of 280542468 is about 654.6354772997.

The spelling of 280542468 in words is "two hundred eighty million, five hundred forty-two thousand, four hundred sixty-eight".