1639030942 has 8 divisors (see below), whose sum is σ = 2486170800. Its totient is φ = 810307344.

The previous prime is 1639030927. The next prime is 1639030949. The reversal of 1639030942 is 2490309361.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1639030949) 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, 4603842 + ... + 4604197.

It is an arithmetic number, because the mean of its divisors is an integer number (310771350).

Almost surely, 2^1639030942 is an apocalyptic number.

1639030942 is a deficient number, since it is larger than the sum of its proper divisors (847139858).

1639030942 is an equidigital number, since it uses as much as digits as its factorization.

1639030942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9208130.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 1639030942 is about 40484.9471038311. The cubic root of 1639030942 is about 1179.0413889329.

The spelling of 1639030942 in words is "one billion, six hundred thirty-nine million, thirty thousand, nine hundred forty-two".