40312220431 has 8 divisors (see below), whose sum is σ = 46084304000. Its totient is φ = 34543435608.

The previous prime is 40312220423. The next prime is 40312220467. The reversal of 40312220431 is 13402221304.

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

It is a cyclic number.

It is not a de Polignac number, because 40312220431 - 2³ = 40312220423 is a prime.

It is a super-2 number, since 2×40312220431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40312220731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 798441 + ... + 847426.

It is an arithmetic number, because the mean of its divisors is an integer number (5760538000).

Almost surely, 2^40312220431 is an apocalyptic number.

40312220431 is a deficient number, since it is larger than the sum of its proper divisors (5772083569).

40312220431 is a wasteful number, since it uses less digits than its factorization.

40312220431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649373.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 40312220431 its reverse (13402221304), we get a palindrome (53714441735).

The spelling of 40312220431 in words is "forty billion, three hundred twelve million, two hundred twenty thousand, four hundred thirty-one".