40402310045 has 8 divisors (see below), whose sum is σ = 50154591960. Its totient is φ = 31207301440.

The previous prime is 40402310023. The next prime is 40402310057. The reversal of 40402310045 is 54001320404.

It can be written as a sum of positive squares in 4 ways, for example, as 12084824761 + 28317485284 = 109931^2 + 168278^2 .

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

It is not a de Polignac number, because 40402310045 - 2²² = 40398115741 is a prime.

It is a super-3 number, since 3×40402310045³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40402310045.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139318166 + ... + 139318455.

It is an arithmetic number, because the mean of its divisors is an integer number (6269323995).

Almost surely, 2^40402310045 is an apocalyptic number.

It is an amenable number.

40402310045 is a deficient number, since it is larger than the sum of its proper divisors (9752281915).

40402310045 is a wasteful number, since it uses less digits than its factorization.

40402310045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278636655.

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 40402310045 its reverse (54001320404), we get a palindrome (94403630449).

The spelling of 40402310045 in words is "forty billion, four hundred two million, three hundred ten thousand, forty-five".