194478488 has 32 divisors (see below), whose sum is σ = 372340800. Its totient is φ = 95205792.

The previous prime is 194478467. The next prime is 194478491. The reversal of 194478488 is 884874491.

It is a super-2 number, since 2×194478488² = 75643764589532288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94931 + ... + 96957.

It is an arithmetic number, because the mean of its divisors is an integer number (11635650).

Almost surely, 2^194478488 is an apocalyptic number.

It is an amenable number.

194478488 is a deficient number, since it is larger than the sum of its proper divisors (177862312).

194478488 is a wasteful number, since it uses less digits than its factorization.

194478488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2279 (or 2275 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 53.

The square root of 194478488 is about 13945.5544170893. The cubic root of 194478488 is about 579.3715825479.

The spelling of 194478488 in words is "one hundred ninety-four million, four hundred seventy-eight thousand, four hundred eighty-eight".