1894117442 has 24 divisors (see below), whose sum is σ = 3312198864. Its totient is φ = 810006792.

The previous prime is 1894117439. The next prime is 1894117469. The reversal of 1894117442 is 2447114981.

It is a self number, because there is not a number n which added to its sum of digits gives 1894117442.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25073 + ... + 66459.

It is an arithmetic number, because the mean of its divisors is an integer number (138008286).

Almost surely, 2^1894117442 is an apocalyptic number.

1894117442 is a deficient number, since it is larger than the sum of its proper divisors (1418081422).

1894117442 is a wasteful number, since it uses less digits than its factorization.

1894117442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41870 (or 41863 counting only the distinct ones).

The product of its digits is 64512, while the sum is 41.

The square root of 1894117442 is about 43521.4595573264. The cubic root of 1894117442 is about 1237.2827775307.

The spelling of 1894117442 in words is "one billion, eight hundred ninety-four million, one hundred seventeen thousand, four hundred forty-two".