591972342 has 64 divisors (see below), whose sum is σ = 1326495744. Its totient is φ = 174885120.

The previous prime is 591972319. The next prime is 591972343. The reversal of 591972342 is 243279195.

It is a junction number, because it is equal to n+sod(n) for n = 591972294 and 591972303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (591972343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 330373 + ... + 332159.

It is an arithmetic number, because the mean of its divisors is an integer number (20726496).

Almost surely, 2^591972342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 591972342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (663247872).

591972342 is an abundant number, since it is smaller than the sum of its proper divisors (734523402).

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

591972342 is a wasteful number, since it uses less digits than its factorization.

591972342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1973.

The product of its digits is 136080, while the sum is 42.

The square root of 591972342 is about 24330.4817461554. The cubic root of 591972342 is about 839.6542142529.

The spelling of 591972342 in words is "five hundred ninety-one million, nine hundred seventy-two thousand, three hundred forty-two".