28292433204 has 72 divisors (see below), whose sum is σ = 77018184768. Its totient is φ = 8083494720.

The previous prime is 28292433181. The next prime is 28292433223. The reversal of 28292433204 is 40233429282.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131544 + ... + 271824.

Almost surely, 2^28292433204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28292433204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38509092384).

28292433204 is an abundant number, since it is smaller than the sum of its proper divisors (48725751564).

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

28292433204 is an equidigital number, since it uses as much as digits as its factorization.

28292433204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140323 (or 140293 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 39.

The spelling of 28292433204 in words is "twenty-eight billion, two hundred ninety-two million, four hundred thirty-three thousand, two hundred four".