1302991104 has 72 divisors (see below), whose sum is σ = 3509809632. Its totient is φ = 429076480.

The previous prime is 1302991093. The next prime is 1302991121. The reversal of 1302991104 is 4011992031.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53524 + ... + 73964.

It is an arithmetic number, because the mean of its divisors is an integer number (48747356).

Almost surely, 2^1302991104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1302991104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1754904816).

1302991104 is an abundant number, since it is smaller than the sum of its proper divisors (2206818528).

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

1302991104 is an equidigital number, since it uses as much as digits as its factorization.

1302991104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20543 (or 20529 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 1302991104 is about 36096.9680721248. The cubic root of 1302991104 is about 1092.2292854020.

The spelling of 1302991104 in words is "one billion, three hundred two million, nine hundred ninety-one thousand, one hundred four".