40919566 has 16 divisors (see below), whose sum is σ = 64234368. Its totient is φ = 19526400.

The previous prime is 40919491. The next prime is 40919569. The reversal of 40919566 is 66591904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40919569) 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, 6 + ... + 9046.

It is an arithmetic number, because the mean of its divisors is an integer number (4014648).

Almost surely, 2^40919566 is an apocalyptic number.

40919566 is a deficient number, since it is larger than the sum of its proper divisors (23314802).

40919566 is a wasteful number, since it uses less digits than its factorization.

40919566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9147.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 40919566 is about 6396.8403137799. The cubic root of 40919566 is about 344.5960854408.

The spelling of 40919566 in words is "forty million, nine hundred nineteen thousand, five hundred sixty-six".