40894499 has 2 divisors, whose sum is σ = 40894500. Its totient is φ = 40894498.

The previous prime is 40894489. The next prime is 40894501. The reversal of 40894499 is 99449804.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40894499 - 2²⁴ = 24117283 is a prime.

It is a super-2 number, since 2×40894499² = 3344720096922002, which contains 22 as substring.

Together with 40894501, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40894439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20447249 + 20447250.

It is an arithmetic number, because the mean of its divisors is an integer number (20447250).

Almost surely, 2^40894499 is an apocalyptic number.

40894499 is a deficient number, since it is larger than the sum of its proper divisors (1).

40894499 is an equidigital number, since it uses as much as digits as its factorization.

40894499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 40894499 is about 6394.8806869245. The cubic root of 40894499 is about 344.5257054623.

The spelling of 40894499 in words is "forty million, eight hundred ninety-four thousand, four hundred ninety-nine".