2235724391 has 2 divisors, whose sum is σ = 2235724392. Its totient is φ = 2235724390.

The previous prime is 2235724303. The next prime is 2235724409. The reversal of 2235724391 is 1934275322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2235724391 - 2¹⁸ = 2235462247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2235724291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1117862195 + 1117862196.

It is an arithmetic number, because the mean of its divisors is an integer number (1117862196).

Almost surely, 2^2235724391 is an apocalyptic number.

2235724391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2235724391 is an equidigital number, since it uses as much as digits as its factorization.

2235724391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 38.

The square root of 2235724391 is about 47283.4473256762. The cubic root of 2235724391 is about 1307.5935057131.

The spelling of 2235724391 in words is "two billion, two hundred thirty-five million, seven hundred twenty-four thousand, three hundred ninety-one".