40894539 has 8 divisors (see below), whose sum is σ = 62315520. Its totient is φ = 23368296.

The previous prime is 40894531. The next prime is 40894603. The reversal of 40894539 is 93549804.

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

It is not a de Polignac number, because 40894539 - 2³ = 40894531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40894539.

It is not an unprimeable number, because it can be changed into a prime (40894531) 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, 973659 + ... + 973700.

It is an arithmetic number, because the mean of its divisors is an integer number (7789440).

Almost surely, 2^40894539 is an apocalyptic number.

40894539 is a deficient number, since it is larger than the sum of its proper divisors (21420981).

40894539 is a wasteful number, since it uses less digits than its factorization.

40894539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947369.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 40894539 is about 6394.8838144254. The cubic root of 40894539 is about 344.5258177922.

The spelling of 40894539 in words is "forty million, eight hundred ninety-four thousand, five hundred thirty-nine".