280863042 has 16 divisors (see below), whose sum is σ = 563757312. Its totient is φ = 93282480.

The previous prime is 280863019. The next prime is 280863053. The reversal of 280863042 is 240368082.

It is a super-2 number, since 2×280863042² = 157768096722987528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 280862994 and 280863012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82834 + ... + 86157.

It is an arithmetic number, because the mean of its divisors is an integer number (35234832).

Almost surely, 2^280863042 is an apocalyptic number.

280863042 is an abundant number, since it is smaller than the sum of its proper divisors (282894270).

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

280863042 is a wasteful number, since it uses less digits than its factorization.

280863042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169273.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 280863042 is about 16758.9690017017. The cubic root of 280863042 is about 654.8847315758.

The spelling of 280863042 in words is "two hundred eighty million, eight hundred sixty-three thousand, forty-two".