239738026530 has 64 divisors (see below), whose sum is σ = 606360268800. Its totient is φ = 60494765760.

The previous prime is 239738026519. The next prime is 239738026543. The reversal of 239738026530 is 35620837932.

It is a self number, because there is not a number n which added to its sum of digits gives 239738026530.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 244815 + ... + 734445.

It is an arithmetic number, because the mean of its divisors is an integer number (9474379200).

Almost surely, 2^239738026530 is an apocalyptic number.

It is a pronic number, being equal to 489630×489631.

It is a practical number, because each smaller number is the sum of distinct divisors of 239738026530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303180134400).

239738026530 is an abundant number, since it is smaller than the sum of its proper divisors (366622242270).

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

239738026530 is a wasteful number, since it uses less digits than its factorization.

239738026530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490519.

The product of its (nonzero) digits is 1632960, while the sum is 48.

The spelling of 239738026530 in words is "two hundred thirty-nine billion, seven hundred thirty-eight million, twenty-six thousand, five hundred thirty".