102280404 has 48 divisors (see below), whose sum is σ = 245548800. Its totient is φ = 33116160.

The previous prime is 102280403. The next prime is 102280411. The reversal of 102280404 is 404082201.

It is a super-2 number, since 2×102280404² = 20922562084806432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102280403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220677 + ... + 221139.

It is an arithmetic number, because the mean of its divisors is an integer number (5115600).

Almost surely, 2^102280404 is an apocalyptic number.

It is an amenable number.

102280404 is an abundant number, since it is smaller than the sum of its proper divisors (143268396).

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

102280404 is a wasteful number, since it uses less digits than its factorization.

102280404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960 (or 958 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 102280404 is about 10113.3774773811. The cubic root of 102280404 is about 467.6606313142.

The spelling of 102280404 in words is "one hundred two million, two hundred eighty thousand, four hundred four".