194954638 has 8 divisors (see below), whose sum is σ = 292594680. Its totient is φ = 97423080.

The previous prime is 194954621. The next prime is 194954651. The reversal of 194954638 is 836459491.

It is a happy number.

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

It is a super-2 number, since 2×194954638² = 76014621755422088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 194954591 and 194954600.

It is a congruent number.

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, 22468 + ... + 29911.

It is an arithmetic number, because the mean of its divisors is an integer number (36574335).

Almost surely, 2^194954638 is an apocalyptic number.

194954638 is a deficient number, since it is larger than the sum of its proper divisors (97640042).

194954638 is a wasteful number, since it uses less digits than its factorization.

194954638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54242.

The product of its digits is 933120, while the sum is 49.

The square root of 194954638 is about 13962.6157291533. The cubic root of 194954638 is about 579.8440305943.

The spelling of 194954638 in words is "one hundred ninety-four million, nine hundred fifty-four thousand, six hundred thirty-eight".