1299574426 has 16 divisors (see below), whose sum is σ = 2052718560. Its totient is φ = 615360240.

The previous prime is 1299574399. The next prime is 1299574427. The reversal of 1299574426 is 6244759921.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1299574426.

It is not an unprimeable number, because it can be changed into a prime (1299574427) 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 7 ways as a sum of consecutive naturals, for example, 144481 + ... + 153211.

It is an arithmetic number, because the mean of its divisors is an integer number (128294910).

Almost surely, 2^1299574426 is an apocalyptic number.

1299574426 is a deficient number, since it is larger than the sum of its proper divisors (753144134).

1299574426 is a wasteful number, since it uses less digits than its factorization.

1299574426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12669.

The product of its digits is 1088640, while the sum is 49.

The square root of 1299574426 is about 36049.6106220303. The cubic root of 1299574426 is about 1091.2737755925.

The spelling of 1299574426 in words is "one billion, two hundred ninety-nine million, five hundred seventy-four thousand, four hundred twenty-six".