40042296225 has 144 divisors (see below), whose sum is σ = 78217850880. Its totient is φ = 19507132800.

The previous prime is 40042296199. The next prime is 40042296227. The reversal of 40042296225 is 52269224004.

It is a happy number.

40042296225 is a `hidden beast` number, since 4 + 0 + 0 + 4 + 2 + 29 + 622 + 5 = 666.

40042296225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40042296225 - 2²⁸ = 39773860769 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40042296225.

It is not an unprimeable number, because it can be changed into a prime (40042296227) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 61888852 + ... + 61889498.

It is an arithmetic number, because the mean of its divisors is an integer number (543179520).

Almost surely, 2^40042296225 is an apocalyptic number.

40042296225 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40042296225 is a deficient number, since it is larger than the sum of its proper divisors (38175554655).

40042296225 is a wasteful number, since it uses less digits than its factorization.

40042296225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180 (or 1172 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 40042296225 in words is "forty billion, forty-two million, two hundred ninety-six thousand, two hundred twenty-five".