532240391 has 2 divisors, whose sum is σ = 532240392. Its totient is φ = 532240390.

The previous prime is 532240349. The next prime is 532240411. The reversal of 532240391 is 193042235.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-532240391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (532240321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266120195 + 266120196.

It is an arithmetic number, because the mean of its divisors is an integer number (266120196).

Almost surely, 2^532240391 is an apocalyptic number.

532240391 is a deficient number, since it is larger than the sum of its proper divisors (1).

532240391 is an equidigital number, since it uses as much as digits as its factorization.

532240391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 532240391 is about 23070.3357366121. The cubic root of 532240391 is about 810.4059292391.

The spelling of 532240391 in words is "five hundred thirty-two million, two hundred forty thousand, three hundred ninety-one".