1994398342 has 8 divisors (see below), whose sum is σ = 3064563432. Its totient is φ = 972877200.

The previous prime is 1994398339. The next prime is 1994398349. The reversal of 1994398342 is 2438934991.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1994398342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1994398349) 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, 12160884 + ... + 12161047.

It is an arithmetic number, because the mean of its divisors is an integer number (383070429).

Almost surely, 2^1994398342 is an apocalyptic number.

1994398342 is a deficient number, since it is larger than the sum of its proper divisors (1070165090).

1994398342 is a wasteful number, since it uses less digits than its factorization.

1994398342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24321974.

The product of its digits is 1679616, while the sum is 52.

The square root of 1994398342 is about 44658.6871952143. The cubic root of 1994398342 is about 1258.7436755303.

The spelling of 1994398342 in words is "one billion, nine hundred ninety-four million, three hundred ninety-eight thousand, three hundred forty-two".