28744314460 has 12 divisors (see below), whose sum is σ = 60363060408. Its totient is φ = 11497725776.

The previous prime is 28744314421. The next prime is 28744314461. The reversal of 28744314460 is 6441344782.

It is a super-2 number, since 2×28744314460² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28744314461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 718607842 + ... + 718607881.

It is an arithmetic number, because the mean of its divisors is an integer number (5030255034).

Almost surely, 2^28744314460 is an apocalyptic number.

28744314460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28744314460 is an abundant number, since it is smaller than the sum of its proper divisors (31618745948).

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

28744314460 is a wasteful number, since it uses less digits than its factorization.

28744314460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1437215732 (or 1437215730 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 43.

The spelling of 28744314460 in words is "twenty-eight billion, seven hundred forty-four million, three hundred fourteen thousand, four hundred sixty".