40624575389 has 4 divisors (see below), whose sum is σ = 41722536924. Its totient is φ = 39526613856.

The previous prime is 40624575379. The next prime is 40624575391. The reversal of 40624575389 is 98357542604.

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 17034687289 + 23589888100 = 130517^2 + 153590^2 .

It is a cyclic number.

It is not a de Polignac number, because 40624575389 - 2⁸ = 40624575133 is a prime.

It is a super-2 number, since 2×40624575389² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40624575389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40624575319) 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, 548980712 + ... + 548980785.

It is an arithmetic number, because the mean of its divisors is an integer number (10430634231).

Almost surely, 2^40624575389 is an apocalyptic number.

It is an amenable number.

40624575389 is a deficient number, since it is larger than the sum of its proper divisors (1097961535).

40624575389 is a wasteful number, since it uses less digits than its factorization.

40624575389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097961534.

The product of its (nonzero) digits is 7257600, while the sum is 53.

The spelling of 40624575389 in words is "forty billion, six hundred twenty-four million, five hundred seventy-five thousand, three hundred eighty-nine".