1299560028 has 48 divisors (see below), whose sum is σ = 3353834400. Its totient is φ = 389055744.

The previous prime is 1299560023. The next prime is 1299560039. The reversal of 1299560028 is 8200659921.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1299560023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106803 + ... + 118346.

It is an arithmetic number, because the mean of its divisors is an integer number (69871550).

Almost surely, 2^1299560028 is an apocalyptic number.

It is an amenable number.

1299560028 is an abundant number, since it is smaller than the sum of its proper divisors (2054274372).

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

1299560028 is a wasteful number, since it uses less digits than its factorization.

1299560028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225206 (or 225204 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 1299560028 is about 36049.4109244520. The cubic root of 1299560028 is about 1091.2697454994.

The spelling of 1299560028 in words is "one billion, two hundred ninety-nine million, five hundred sixty thousand, twenty-eight".