40100189 has 8 divisors (see below), whose sum is σ = 40574712. Its totient is φ = 39628800.

The previous prime is 40100167. The next prime is 40100191. The reversal of 40100189 is 98100104.

It can be written as a sum of positive squares in 4 ways, for example, as 624100 + 39476089 = 790^2 + 6283^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 40100189 - 2⁸ = 40099933 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 (40100129) 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, 32789 + ... + 33989.

It is an arithmetic number, because the mean of its divisors is an integer number (5071839).

Almost surely, 2^40100189 is an apocalyptic number.

It is an amenable number.

40100189 is a deficient number, since it is larger than the sum of its proper divisors (474523).

40100189 is a wasteful number, since it uses less digits than its factorization.

40100189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1567.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 40100189 is about 6332.4710026971. The cubic root of 40100189 is about 342.2804859048.

The spelling of 40100189 in words is "forty million, one hundred thousand, one hundred eighty-nine".