1944168602 has 4 divisors (see below), whose sum is σ = 2916252906. Its totient is φ = 972084300.

The previous prime is 1944168593. The next prime is 1944168623. The reversal of 1944168602 is 2068614491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2068614491 = 3511 ⋅589181.

It can be written as a sum of positive squares in only one way, i.e., 1623364681 + 320803921 = 40291^2 + 17911^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1944168602.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486042149 + ... + 486042152.

Almost surely, 2^1944168602 is an apocalyptic number.

1944168602 is a deficient number, since it is larger than the sum of its proper divisors (972084304).

1944168602 is an equidigital number, since it uses as much as digits as its factorization.

1944168602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972084303.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 1944168602 is about 44092.7273141501. The cubic root of 1944168602 is about 1248.0863736824.

The spelling of 1944168602 in words is "one billion, nine hundred forty-four million, one hundred sixty-eight thousand, six hundred two".