194564040 has 64 divisors (see below), whose sum is σ = 636759360. Its totient is φ = 47166720.

The previous prime is 194564039. The next prime is 194564059. The reversal of 194564040 is 40465491.

194564040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×194564040² = 75710331322243200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 194563992 and 194564010.

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, 72379 + ... + 75018.

It is an arithmetic number, because the mean of its divisors is an integer number (9949365).

Almost surely, 2^194564040 is an apocalyptic number.

194564040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194564040 is an abundant number, since it is smaller than the sum of its proper divisors (442195320).

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

194564040 is a wasteful number, since it uses less digits than its factorization.

194564040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147422 (or 147418 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 194564040 is about 13948.6214372604. The cubic root of 194564040 is about 579.4565261866.

The spelling of 194564040 in words is "one hundred ninety-four million, five hundred sixty-four thousand, forty".