194361972 has 24 divisors (see below), whose sum is σ = 518298816. Its totient is φ = 55531968.

The previous prime is 194361929. The next prime is 194361991. The reversal of 194361972 is 279163491.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1156833 + ... + 1157000.

It is an arithmetic number, because the mean of its divisors is an integer number (21595784).

Almost surely, 2^194361972 is an apocalyptic number.

194361972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

194361972 is an abundant number, since it is smaller than the sum of its proper divisors (323936844).

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

194361972 is a wasteful number, since it uses less digits than its factorization.

194361972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2313847 (or 2313845 counting only the distinct ones).

The product of its digits is 81648, while the sum is 42.

The square root of 194361972 is about 13941.3762591790. The cubic root of 194361972 is about 579.2558550179.

The spelling of 194361972 in words is "one hundred ninety-four million, three hundred sixty-one thousand, nine hundred seventy-two".