40202031424 has 14 divisors (see below), whose sum is σ = 79775906234. Its totient is φ = 20101015680.

The previous prime is 40202031403. The next prime is 40202031427. The reversal of 40202031424 is 42413020204.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20666937600 + 19535093824 = 143760^2 + 139768^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40202031395 and 40202031404.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 314078307 + ... + 314078434.

Almost surely, 2^40202031424 is an apocalyptic number.

It is an amenable number.

40202031424 is a deficient number, since it is larger than the sum of its proper divisors (39573874810).

40202031424 is an equidigital number, since it uses as much as digits as its factorization.

40202031424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628156753 (or 628156743 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 40202031424 its reverse (42413020204), we get a palindrome (82615051628).

The spelling of 40202031424 in words is "forty billion, two hundred two million, thirty-one thousand, four hundred twenty-four".