40202031425 has 24 divisors (see below), whose sum is σ = 50019334272. Its totient is φ = 32052888000.

The previous prime is 40202031403. The next prime is 40202031427. The reversal of 40202031425 is 52413020204.

It is a happy number.

It is not a de Polignac number, because 40202031425 - 2³⁰ = 39128289601 is a prime.

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 40202031425.

It is not an unprimeable number, because it can be changed into a prime (40202031427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16495307 + ... + 16497743.

It is an arithmetic number, because the mean of its divisors is an integer number (2084138928).

Almost surely, 2^40202031425 is an apocalyptic number.

It is an amenable number.

40202031425 is a deficient number, since it is larger than the sum of its proper divisors (9817302847).

40202031425 is a wasteful number, since it uses less digits than its factorization.

40202031425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4409 (or 4404 counting only the distinct ones).

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

Adding to 40202031425 its reverse (52413020204), we get a palindrome (92615051629).

The spelling of 40202031425 in words is "forty billion, two hundred two million, thirty-one thousand, four hundred twenty-five".