40894289 has 8 divisors (see below), whose sum is σ = 43110240. Its totient is φ = 38684736.

The previous prime is 40894283. The next prime is 40894291. The reversal of 40894289 is 98249804.

It is a happy number.

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 40894289 - 2⁸ = 40894033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40894283) 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, 17462 + ... + 19664.

It is an arithmetic number, because the mean of its divisors is an integer number (5388780).

Almost surely, 2^40894289 is an apocalyptic number.

It is an amenable number.

40894289 is a deficient number, since it is larger than the sum of its proper divisors (2215951).

40894289 is a wasteful number, since it uses less digits than its factorization.

40894289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3199.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 40894289 is about 6394.8642675197. The cubic root of 40894289 is about 344.5251157292.

The spelling of 40894289 in words is "forty million, eight hundred ninety-four thousand, two hundred eighty-nine".