194172020 has 48 divisors (see below), whose sum is σ = 490546560. Its totient is φ = 63068544.

The previous prime is 194171987. The next prime is 194172031. The reversal of 194172020 is 20271491.

194172020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 33839 + ... + 39158.

It is an arithmetic number, because the mean of its divisors is an integer number (10219720).

Almost surely, 2^194172020 is an apocalyptic number.

194172020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194172020 is an abundant number, since it is smaller than the sum of its proper divisors (296374540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

194172020 is a wasteful number, since it uses less digits than its factorization.

194172020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73032 (or 73030 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 194172020 is about 13934.5620670332. The cubic root of 194172020 is about 579.0670892299.

The spelling of 194172020 in words is "one hundred ninety-four million, one hundred seventy-two thousand, twenty".