40023564546 has 32 divisors (see below), whose sum is σ = 91987878528. Its totient is φ = 11372123520.

The previous prime is 40023564527. The next prime is 40023564551. The reversal of 40023564546 is 64546532004.

It is a super-2 number, since 2×40023564546² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2624835 + ... + 2640038.

It is an arithmetic number, because the mean of its divisors is an integer number (2874621204).

Almost surely, 2^40023564546 is an apocalyptic number.

40023564546 is an abundant number, since it is smaller than the sum of its proper divisors (51964313982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40023564546 is a wasteful number, since it uses less digits than its factorization.

40023564546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5265066.

The product of its (nonzero) digits is 345600, while the sum is 39.

The spelling of 40023564546 in words is "forty billion, twenty-three million, five hundred sixty-four thousand, five hundred forty-six".