1299442608 has 40 divisors (see below), whose sum is σ = 3729882800. Its totient is φ = 433147392.

The previous prime is 1299442603. The next prime is 1299442637. The reversal of 1299442608 is 8062449921.

It is not an unprimeable number, because it can be changed into a prime (1299442603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1503553 + ... + 1504416.

It is an arithmetic number, because the mean of its divisors is an integer number (93247070).

Almost surely, 2^1299442608 is an apocalyptic number.

1299442608 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1299442608 is an abundant number, since it is smaller than the sum of its proper divisors (2430440192).

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

1299442608 is a wasteful number, since it uses less digits than its factorization.

1299442608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3007986 (or 3007974 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 1299442608 is about 36047.7822896222. The cubic root of 1299442608 is about 1091.2368777723.

The spelling of 1299442608 in words is "one billion, two hundred ninety-nine million, four hundred forty-two thousand, six hundred eight".