1942159217 has 8 divisors (see below), whose sum is σ = 2019226272. Its totient is φ = 1866506400.

The previous prime is 1942159213. The next prime is 1942159223. The reversal of 1942159217 is 7129512491.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1942159217 - 2² = 1942159213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1942159211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350759 + ... + 356252.

It is an arithmetic number, because the mean of its divisors is an integer number (252403284).

Almost surely, 2^1942159217 is an apocalyptic number.

It is an amenable number.

1942159217 is a deficient number, since it is larger than the sum of its proper divisors (77067055).

1942159217 is an equidigital number, since it uses as much as digits as its factorization.

1942159217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707119.

The product of its digits is 45360, while the sum is 41.

The square root of 1942159217 is about 44069.9355229844. The cubic root of 1942159217 is about 1247.6562411421.

The spelling of 1942159217 in words is "one billion, nine hundred forty-two million, one hundred fifty-nine thousand, two hundred seventeen".