740023231 has 2 divisors, whose sum is σ = 740023232. Its totient is φ = 740023230.

The previous prime is 740023201. The next prime is 740023237. The reversal of 740023231 is 132320047.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 740023231 - 2¹⁵ = 739990463 is a prime.

It is a super-2 number, since 2×740023231² = 1095268764839358722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (740023237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370011615 + 370011616.

It is an arithmetic number, because the mean of its divisors is an integer number (370011616).

Almost surely, 2^740023231 is an apocalyptic number.

740023231 is a deficient number, since it is larger than the sum of its proper divisors (1).

740023231 is an equidigital number, since it uses as much as digits as its factorization.

740023231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 740023231 is about 27203.3680083919. The cubic root of 740023231 is about 904.5136346585.

Adding to 740023231 its reverse (132320047), we get a palindrome (872343278).

The spelling of 740023231 in words is "seven hundred forty million, twenty-three thousand, two hundred thirty-one".