742758259 has 2 divisors, whose sum is σ = 742758260. Its totient is φ = 742758258.

The previous prime is 742758253. The next prime is 742758281. The reversal of 742758259 is 952857247.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 742758259 - 2²¹ = 740661107 is a prime.

It is a super-2 number, since 2×742758259² = 1103379662625422162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (742758253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371379129 + 371379130.

It is an arithmetic number, because the mean of its divisors is an integer number (371379130).

Almost surely, 2^742758259 is an apocalyptic number.

742758259 is a deficient number, since it is larger than the sum of its proper divisors (1).

742758259 is an equidigital number, since it uses as much as digits as its factorization.

742758259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1411200, while the sum is 49.

The square root of 742758259 is about 27253.5916715577. The cubic root of 742758259 is about 905.6265856025.

The spelling of 742758259 in words is "seven hundred forty-two million, seven hundred fifty-eight thousand, two hundred fifty-nine".