1942645073 has 4 divisors (see below), whose sum is σ = 1944132720. Its totient is φ = 1941157428.

The previous prime is 1942645057. The next prime is 1942645079. The reversal of 1942645073 is 3705462491.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3705462491 = 59 ⋅62804449.

It is a cyclic number.

It is not a de Polignac number, because 1942645073 - 2⁴ = 1942645057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1942645073.

It is not an unprimeable number, because it can be changed into a prime (1942645079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 741863 + ... + 744476.

It is an arithmetic number, because the mean of its divisors is an integer number (486033180).

Almost surely, 2^1942645073 is an apocalyptic number.

It is an amenable number.

1942645073 is a deficient number, since it is larger than the sum of its proper divisors (1487647).

1942645073 is a wasteful number, since it uses less digits than its factorization.

1942645073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487646.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 1942645073 is about 44075.4475076544. The cubic root of 1942645073 is about 1247.7602715300.

The spelling of 1942645073 in words is "one billion, nine hundred forty-two million, six hundred forty-five thousand, seventy-three".