807290028 has 36 divisors (see below), whose sum is σ = 2041935168. Its totient is φ = 268927200.

The previous prime is 807290027. The next prime is 807290039. The reversal of 807290028 is 820092708.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 807289974 and 807290001.

It is not an unprimeable number, because it can be changed into a prime (807290027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59478 + ... + 71778.

Almost surely, 2^807290028 is an apocalyptic number.

It is an amenable number.

807290028 is an abundant number, since it is smaller than the sum of its proper divisors (1234645140).

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

807290028 is a wasteful number, since it uses less digits than its factorization.

807290028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14134 (or 14129 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 807290028 is about 28412.8496986839. The cubic root of 807290028 is about 931.1290207660.

The spelling of 807290028 in words is "eight hundred seven million, two hundred ninety thousand, twenty-eight".