28000293628 has 12 divisors (see below), whose sum is σ = 49026688480. Its totient is φ = 13992668352.

The previous prime is 28000293599. The next prime is 28000293653. The reversal of 28000293628 is 82639200082.

It is a congruent number.

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, 1861188 + ... + 1876171.

Almost surely, 2^28000293628 is an apocalyptic number.

It is an amenable number.

28000293628 is a deficient number, since it is larger than the sum of its proper divisors (21026394852).

28000293628 is a wasteful number, since it uses less digits than its factorization.

28000293628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3739236 (or 3739234 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 28000293628 in words is "twenty-eight billion, two hundred ninety-three thousand, six hundred twenty-eight".