194290642 has 32 divisors (see below), whose sum is σ = 359396352. Its totient is φ = 76711104.

The previous prime is 194290627. The next prime is 194290661. The reversal of 194290642 is 246092491.

It is a happy number.

194290642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156448 + ... + 157684.

It is an arithmetic number, because the mean of its divisors is an integer number (11231136).

Almost surely, 2^194290642 is an apocalyptic number.

194290642 is a deficient number, since it is larger than the sum of its proper divisors (165105710).

194290642 is a wasteful number, since it uses less digits than its factorization.

194290642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 194290642 is about 13938.8178121389. The cubic root of 194290642 is about 579.1849848861.

The spelling of 194290642 in words is "one hundred ninety-four million, two hundred ninety thousand, six hundred forty-two".