1318292920 has 64 divisors (see below), whose sum is σ = 3428049600. Its totient is φ = 446899200.

The previous prime is 1318292867. The next prime is 1318293007. The reversal of 1318292920 is 292928131.

It is a super-3 number, since 3×1318292920³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1318292920.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1531 + ... + 51370.

It is an arithmetic number, because the mean of its divisors is an integer number (53563275).

Almost surely, 2^1318292920 is an apocalyptic number.

1318292920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1318292920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1714024800).

1318292920 is an abundant number, since it is smaller than the sum of its proper divisors (2109756680).

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

1318292920 is a wasteful number, since it uses less digits than its factorization.

1318292920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53008 (or 53004 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 1318292920 is about 36308.3037334437. The cubic root of 1318292920 is about 1096.4882275227.

The spelling of 1318292920 in words is "one billion, three hundred eighteen million, two hundred ninety-two thousand, nine hundred twenty".