28394949260 has 24 divisors (see below), whose sum is σ = 59638311936. Its totient is φ = 11356280960.

The previous prime is 28394949259. The next prime is 28394949287. The reversal of 28394949260 is 6294949382.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 28394949196 and 28394949205.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35504 + ... + 240936.

It is an arithmetic number, because the mean of its divisors is an integer number (2484929664).

Almost surely, 2^28394949260 is an apocalyptic number.

28394949260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28394949260 is an abundant number, since it is smaller than the sum of its proper divisors (31243362676).

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

28394949260 is a wasteful number, since it uses less digits than its factorization.

28394949260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212353 (or 212351 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 56.

The spelling of 28394949260 in words is "twenty-eight billion, three hundred ninety-four million, nine hundred forty-nine thousand, two hundred sixty".