1318701904 has 120 divisors (see below), whose sum is σ = 2927428952. Its totient is φ = 571484160.

The previous prime is 1318701871. The next prime is 1318701907. The reversal of 1318701904 is 4091078131.

It can be written as a sum of positive squares in 12 ways, for example, as 232867600 + 1085834304 = 15260^2 + 32952^2 .

It is a super-2 number, since 2×1318701904² = 3477949423226450432, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1318701904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318701907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21618034 + ... + 21618094.

Almost surely, 2^1318701904 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 1318701904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1463714476).

1318701904 is an abundant number, since it is smaller than the sum of its proper divisors (1608727048).

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

1318701904 is a wasteful number, since it uses less digits than its factorization.

1318701904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 1318701904 is about 36313.9353967592. The cubic root of 1318701904 is about 1096.6016064154.

The spelling of 1318701904 in words is "one billion, three hundred eighteen million, seven hundred one thousand, nine hundred four".