1318663044 has 48 divisors (see below), whose sum is σ = 3422509440. Its totient is φ = 439071840.

The previous prime is 1318663013. The next prime is 1318663057. The reversal of 1318663044 is 4403668131.

It is a happy number.

1318663044 is a `hidden beast` number, since 1 + 3 + 18 + 6 + 630 + 4 + 4 = 666.

It is a super-2 number, since 2×1318663044² = 3477744447222691872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 99954 + ... + 112374.

It is an arithmetic number, because the mean of its divisors is an integer number (71302280).

Almost surely, 2^1318663044 is an apocalyptic number.

It is an amenable number.

1318663044 is an abundant number, since it is smaller than the sum of its proper divisors (2103846396).

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

1318663044 is a wasteful number, since it uses less digits than its factorization.

1318663044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13417 (or 13409 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 1318663044 is about 36313.4003365149. The cubic root of 1318663044 is about 1096.5908346210.

The spelling of 1318663044 in words is "one billion, three hundred eighteen million, six hundred sixty-three thousand, forty-four".