742952289 has 4 divisors (see below), whose sum is σ = 990603056. Its totient is φ = 495301524.

The previous prime is 742952281. The next prime is 742952291. The reversal of 742952289 is 982259247.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 982259247 = 3 ⋅327419749.

It is not a de Polignac number, because 742952289 - 2³ = 742952281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (742952281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123825379 + ... + 123825384.

It is an arithmetic number, because the mean of its divisors is an integer number (247650764).

Almost surely, 2^742952289 is an apocalyptic number.

It is an amenable number.

742952289 is a deficient number, since it is larger than the sum of its proper divisors (247650767).

742952289 is a wasteful number, since it uses less digits than its factorization.

742952289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247650766.

The product of its digits is 725760, while the sum is 48.

The square root of 742952289 is about 27257.1511534129. The cubic root of 742952289 is about 905.7054373803.

The spelling of 742952289 in words is "seven hundred forty-two million, nine hundred fifty-two thousand, two hundred eighty-nine".