28100076 has 12 divisors (see below), whose sum is σ = 65566872. Its totient is φ = 9366688.

The previous prime is 28100041. The next prime is 28100141. The reversal of 28100076 is 67000182.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×28100076² = 1579228542411552, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1170825 + ... + 1170848.

It is an arithmetic number, because the mean of its divisors is an integer number (5463906).

Almost surely, 2^28100076 is an apocalyptic number.

It is an amenable number.

28100076 is an abundant number, since it is smaller than the sum of its proper divisors (37466796).

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

28100076 is a wasteful number, since it uses less digits than its factorization.

28100076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2341680 (or 2341678 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 28100076 is about 5300.9504808100. The cubic root of 28100076 is about 304.0202404575.

The spelling of 28100076 in words is "twenty-eight million, one hundred thousand, seventy-six".