40894519 has 4 divisors (see below), whose sum is σ = 41123160. Its totient is φ = 40665880.

The previous prime is 40894501. The next prime is 40894523. The reversal of 40894519 is 91549804.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40894519 - 2¹¹ = 40892471 is a prime.

It is a super-2 number, since 2×40894519² = 3344723368482722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40894319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114052 + ... + 114409.

It is an arithmetic number, because the mean of its divisors is an integer number (10280790).

Almost surely, 2^40894519 is an apocalyptic number.

40894519 is a deficient number, since it is larger than the sum of its proper divisors (228641).

40894519 is a wasteful number, since it uses less digits than its factorization.

40894519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228640.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 40894519 is about 6394.8822506751. The cubic root of 40894519 is about 344.5257616273.

The spelling of 40894519 in words is "forty million, eight hundred ninety-four thousand, five hundred nineteen".