1318420236 has 24 divisors (see below), whose sum is σ = 3515787520. Its totient is φ = 376691472.

The previous prime is 1318420211. The next prime is 1318420253. The reversal of 1318420236 is 6320248131.

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, 7847656 + ... + 7847823.

Almost surely, 2^1318420236 is an apocalyptic number.

It is an amenable number.

1318420236 is an abundant number, since it is smaller than the sum of its proper divisors (2197367284).

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

1318420236 is a wasteful number, since it uses less digits than its factorization.

1318420236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15695493 (or 15695491 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 1318420236 is about 36310.0569539625. The cubic root of 1318420236 is about 1096.5235246860.

Adding to 1318420236 its reverse (6320248131), we get a palindrome (7638668367).

The spelling of 1318420236 in words is "one billion, three hundred eighteen million, four hundred twenty thousand, two hundred thirty-six".