73400189 has 8 divisors (see below), whose sum is σ = 77220000. Its totient is φ = 69666352.

The previous prime is 73400179. The next prime is 73400207. The reversal of 73400189 is 98100437.

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

It is a de Polignac number, because none of the positive numbers 2^k-73400189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73400179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19739 + ... + 23160.

It is an arithmetic number, because the mean of its divisors is an integer number (9652500).

Almost surely, 2^73400189 is an apocalyptic number.

It is an amenable number.

73400189 is a deficient number, since it is larger than the sum of its proper divisors (3819811).

73400189 is a wasteful number, since it uses less digits than its factorization.

73400189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42987.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 73400189 is about 8567.3910264444. The cubic root of 73400189 is about 418.6962386168.

The spelling of 73400189 in words is "seventy-three million, four hundred thousand, one hundred eighty-nine".