1942942899 has 8 divisors (see below), whose sum is σ = 2679921360. Its totient is φ = 1250629856.

The previous prime is 1942942889. The next prime is 1942942909. The reversal of 1942942899 is 9982492491.

It is an interprime number because it is at equal distance from previous prime (1942942889) and next prime (1942942909).

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 1942942899 - 2²¹ = 1940845747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1942942819) 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, 11166252 + ... + 11166425.

It is an arithmetic number, because the mean of its divisors is an integer number (334990170).

Almost surely, 2^1942942899 is an apocalyptic number.

1942942899 is a deficient number, since it is larger than the sum of its proper divisors (736978461).

1942942899 is a wasteful number, since it uses less digits than its factorization.

1942942899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22332709.

The product of its digits is 3359232, while the sum is 57.

The square root of 1942942899 is about 44078.8259712075. The cubic root of 1942942899 is about 1247.8240327846.

The spelling of 1942942899 in words is "one billion, nine hundred forty-two million, nine hundred forty-two thousand, eight hundred ninety-nine".