19394242 has 8 divisors (see below), whose sum is σ = 33247296. Its totient is φ = 8311812.

The previous prime is 19394233. The next prime is 19394281. The reversal of 19394242 is 24249391.

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

It is a super-2 number, since 2×19394242² = 752273245509128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 19394198 and 19394207.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 692638 + ... + 692665.

It is an arithmetic number, because the mean of its divisors is an integer number (4155912).

Almost surely, 2^19394242 is an apocalyptic number.

19394242 is a deficient number, since it is larger than the sum of its proper divisors (13853054).

19394242 is a wasteful number, since it uses less digits than its factorization.

19394242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385312.

The product of its digits is 15552, while the sum is 34.

The square root of 19394242 is about 4403.8894173219. The cubic root of 19394242 is about 268.6731518513.

The spelling of 19394242 in words is "nineteen million, three hundred ninety-four thousand, two hundred forty-two".