1913414144 has 20 divisors (see below), whose sum is σ = 3823092174. Its totient is φ = 956706816.

The previous prime is 1913414101. The next prime is 1913414161. The reversal of 1913414144 is 4414143191.

It can be written as a sum of positive squares in only one way, i.e., 1517881600 + 395532544 = 38960^2 + 19888^2 .

It is a super-2 number, since 2×1913414144² = 7322307372918505472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 1913414144.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1868057 + ... + 1869080.

It is a self-describing number.

Almost surely, 2^1913414144 is an apocalyptic number.

It is an amenable number.

1913414144 is a deficient number, since it is larger than the sum of its proper divisors (1909678030).

1913414144 is an frugal number, since it uses more digits than its factorization.

1913414144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3737155 (or 3737139 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 1913414144 is about 43742.5895895522. The cubic root of 1913414144 is about 1241.4702781891.

The spelling of 1913414144 in words is "one billion, nine hundred thirteen million, four hundred fourteen thousand, one hundred forty-four".