280225002 has 16 divisors (see below), whose sum is σ = 562447872. Its totient is φ = 93075360.

The previous prime is 280224979. The next prime is 280225003. The reversal of 280225002 is 200522082.

It is a self number, because there is not a number n which added to its sum of digits gives 280225002.

It is not an unprimeable number, because it can be changed into a prime (280225003) 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, 81418 + ... + 84789.

It is an arithmetic number, because the mean of its divisors is an integer number (35152992).

Almost surely, 2^280225002 is an apocalyptic number.

280225002 is an abundant number, since it is smaller than the sum of its proper divisors (282222870).

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

280225002 is a wasteful number, since it uses less digits than its factorization.

280225002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166493.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 280225002 is about 16739.9224012538. The cubic root of 280225002 is about 654.3884523725.

Adding to 280225002 its reverse (200522082), we get a palindrome (480747084).

The spelling of 280225002 in words is "two hundred eighty million, two hundred twenty-five thousand, two".