239842400537 has 8 divisors (see below), whose sum is σ = 243002828520. Its totient is φ = 236692318720.

The previous prime is 239842400519. The next prime is 239842400573. The reversal of 239842400537 is 735004248932.

It can be written as a sum of positive squares in 4 ways, for example, as 35331136 + 239807069401 = 5944^2 + 489701^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-239842400537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 239842400491 and 239842400500.

It is not an unprimeable number, because it can be changed into a prime (239842400597) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2539868 + ... + 2632605.

It is an arithmetic number, because the mean of its divisors is an integer number (30375353565).

Almost surely, 2^239842400537 is an apocalyptic number.

It is an amenable number.

239842400537 is a deficient number, since it is larger than the sum of its proper divisors (3160427983).

239842400537 is an equidigital number, since it uses as much as digits as its factorization.

239842400537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5173083.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 239842400537 in words is "two hundred thirty-nine billion, eight hundred forty-two million, four hundred thousand, five hundred thirty-seven".