40294189 has 8 divisors (see below), whose sum is σ = 43461432. Its totient is φ = 37136640.

The previous prime is 40294157. The next prime is 40294211. The reversal of 40294189 is 98149204.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5978025 + 34316164 = 2445^2 + 5858^2 .

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 40294189 - 2⁵ = 40294157 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 (40294129) 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, 7857 + ... + 11929.

It is an arithmetic number, because the mean of its divisors is an integer number (5432679).

Almost surely, 2^40294189 is an apocalyptic number.

It is an amenable number.

40294189 is a deficient number, since it is larger than the sum of its proper divisors (3167243).

40294189 is a wasteful number, since it uses less digits than its factorization.

40294189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4847.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 40294189 is about 6347.7703959737. The cubic root of 40294189 is about 342.8315690829.

The spelling of 40294189 in words is "forty million, two hundred ninety-four thousand, one hundred eighty-nine".