1361864418 has 16 divisors (see below), whose sum is σ = 2817650880. Its totient is φ = 438301136.

The previous prime is 1361864411. The next prime is 1361864479. The reversal of 1361864418 is 8144681631.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1361864418.

It is not an unprimeable number, because it can be changed into a prime (1361864411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3913230 + ... + 3913577.

It is an arithmetic number, because the mean of its divisors is an integer number (176103180).

Almost surely, 2^1361864418 is an apocalyptic number.

1361864418 is an abundant number, since it is smaller than the sum of its proper divisors (1455786462).

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

1361864418 is a wasteful number, since it uses less digits than its factorization.

1361864418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7826841.

The product of its digits is 110592, while the sum is 42.

The square root of 1361864418 is about 36903.4472373517. The cubic root of 1361864418 is about 1108.4377063761.

The spelling of 1361864418 in words is "one billion, three hundred sixty-one million, eight hundred sixty-four thousand, four hundred eighteen".