431543346740 has 72 divisors (see below), whose sum is σ = 1030465172520. Its totient is φ = 151513626880.

The previous prime is 431543346713. The next prime is 431543346779. The reversal of 431543346740 is 47643345134.

It can be written as a sum of positive squares in 4 ways, for example, as 78027483556 + 353515863184 = 279334^2 + 594572^2 .

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 431543346691 and 431543346700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3004367 + ... + 3144726.

It is an arithmetic number, because the mean of its divisors is an integer number (14312016285).

Almost surely, 2^431543346740 is an apocalyptic number.

It is an amenable number.

431543346740 is an abundant number, since it is smaller than the sum of its proper divisors (598921825780).

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

431543346740 is a wasteful number, since it uses less digits than its factorization.

431543346740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6149153 (or 6149140 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 44.

The spelling of 431543346740 in words is "four hundred thirty-one billion, five hundred forty-three million, three hundred forty-six thousand, seven hundred forty".