1944418418 has 8 divisors (see below), whose sum is σ = 3088194012. Its totient is φ = 915020416.

The previous prime is 1944418373. The next prime is 1944418433. The reversal of 1944418418 is 8148144491.

It can be written as a sum of positive squares in 2 ways, for example, as 1826109289 + 118309129 = 42733^2 + 10877^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28594355 + ... + 28594422.

Almost surely, 2^1944418418 is an apocalyptic number.

1944418418 is a deficient number, since it is larger than the sum of its proper divisors (1143775594).

1944418418 is a wasteful number, since it uses less digits than its factorization.

1944418418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57188796.

The product of its digits is 147456, while the sum is 44.

The square root of 1944418418 is about 44095.5600712816. The cubic root of 1944418418 is about 1248.1398290243.

The spelling of 1944418418 in words is "one billion, nine hundred forty-four million, four hundred eighteen thousand, four hundred eighteen".