40221431340 has 24 divisors (see below), whose sum is σ = 112620007920. Its totient is φ = 10725715008.

The previous prime is 40221431339. The next prime is 40221431359. The reversal of 40221431340 is 4313412204.

It is a self number, because there is not a number n which added to its sum of digits gives 40221431340.

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, 335178535 + ... + 335178654.

It is an arithmetic number, because the mean of its divisors is an integer number (4692500330).

Almost surely, 2^40221431340 is an apocalyptic number.

It is an amenable number.

40221431340 is an abundant number, since it is smaller than the sum of its proper divisors (72398576580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40221431340 is a wasteful number, since it uses less digits than its factorization.

40221431340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670357201 (or 670357199 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 40221431340 its reverse (4313412204), we get a palindrome (44534843544).

The spelling of 40221431340 in words is "forty billion, two hundred twenty-one million, four hundred thirty-one thousand, three hundred forty".