431240422326532 has 192 divisors, whose sum is σ = 963065521926144. Its totient is φ = 164360977735680.

The previous prime is 431240422326397. The next prime is 431240422326557. The reversal of 431240422326532 is 235623224042134.

It is a super-2 number, since 2×431240422326532² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22445231758 + ... + 22445250970.

It is an arithmetic number, because the mean of its divisors is an integer number (5015966260032).

Almost surely, 2^{431240422326532} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 431240422326532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (481532760963072).

431240422326532 is an abundant number, since it is smaller than the sum of its proper divisors (531825099599612).

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

431240422326532 is a wasteful number, since it uses less digits than its factorization.

431240422326532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28038 (or 28036 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 43.

Adding to 431240422326532 its reverse (235623224042134), we get a palindrome (666863646368666).

The spelling of 431240422326532 in words is "four hundred thirty-one trillion, two hundred forty billion, four hundred twenty-two million, three hundred twenty-six thousand, five hundred thirty-two".