1318910990 has 16 divisors (see below), whose sum is σ = 2375270352. Its totient is φ = 527290944.

The previous prime is 1318910969. The next prime is 1318911019. The reversal of 1318910990 is 990198131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13319 + ... + 53058.

It is an arithmetic number, because the mean of its divisors is an integer number (148454397).

Almost surely, 2^1318910990 is an apocalyptic number.

1318910990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1318910990 is a deficient number, since it is larger than the sum of its proper divisors (1056359362).

1318910990 is a wasteful number, since it uses less digits than its factorization.

1318910990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68371.

The product of its (nonzero) digits is 17496, while the sum is 41.

The square root of 1318910990 is about 36316.8141499223. The cubic root of 1318910990 is about 1096.6595603588.

The spelling of 1318910990 in words is "one billion, three hundred eighteen million, nine hundred ten thousand, nine hundred ninety".