1299924522 has 24 divisors (see below), whose sum is σ = 3033157764. Its totient is φ = 399976704.

The previous prime is 1299924497. The next prime is 1299924523. The reversal of 1299924522 is 2254299921.

It is a happy number.

1299924522 is a `hidden beast` number, since 12 + 9 + 99 + 24 + 522 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1116294921 + 183629601 = 33411^2 + 13551^2 .

It is not an unprimeable number, because it can be changed into a prime (1299924523) 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, 2777383 + ... + 2777850.

Almost surely, 2^1299924522 is an apocalyptic number.

1299924522 is an abundant number, since it is smaller than the sum of its proper divisors (1733233242).

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

1299924522 is a wasteful number, since it uses less digits than its factorization.

1299924522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5555254 (or 5555251 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 1299924522 is about 36054.4660479115. The cubic root of 1299924522 is about 1091.3717605620.

The spelling of 1299924522 in words is "one billion, two hundred ninety-nine million, nine hundred twenty-four thousand, five hundred twenty-two".