40564546 has 8 divisors (see below), whose sum is σ = 66378384. Its totient is φ = 18438420.

The previous prime is 40564541. The next prime is 40564549. The reversal of 40564546 is 64546504.

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

It is a super-2 number, since 2×40564546² = 3290964784372232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40564541) 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, 921900 + ... + 921943.

It is an arithmetic number, because the mean of its divisors is an integer number (8297298).

Almost surely, 2^40564546 is an apocalyptic number.

40564546 is a deficient number, since it is larger than the sum of its proper divisors (25813838).

40564546 is a wasteful number, since it uses less digits than its factorization.

40564546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843856.

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 40564546 is about 6369.0302244533. The cubic root of 40564546 is about 343.5966122930.

The spelling of 40564546 in words is "forty million, five hundred sixty-four thousand, five hundred forty-six".