40024402789069 has 4 divisors (see below), whose sum is σ = 40025677767196. Its totient is φ = 40023127810944.

The previous prime is 40024402789057. The next prime is 40024402789247. The reversal of 40024402789069 is 96098720442004.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39814042966569 + 210359822500 = 6309837^2 + 458650^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40024402789069 is a prime.

It is a super-2 number, since 2×40024402789069² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40024402589069) 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, 637441974 + ... + 637504759.

It is an arithmetic number, because the mean of its divisors is an integer number (10006419441799).

Almost surely, 2^{40024402789069} is an apocalyptic number.

It is an amenable number.

40024402789069 is a deficient number, since it is larger than the sum of its proper divisors (1274978127).

40024402789069 is a wasteful number, since it uses less digits than its factorization.

40024402789069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274978126.

The product of its (nonzero) digits is 6967296, while the sum is 55.

The spelling of 40024402789069 in words is "forty trillion, twenty-four billion, four hundred two million, seven hundred eighty-nine thousand, sixty-nine".