742405351 has 4 divisors (see below), whose sum is σ = 786076272. Its totient is φ = 698734432.

The previous prime is 742405331. The next prime is 742405361. The reversal of 742405351 is 153504247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 153504247 = 13 ⋅11808019.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-742405351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742405331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21835435 + ... + 21835468.

It is an arithmetic number, because the mean of its divisors is an integer number (196519068).

Almost surely, 2^742405351 is an apocalyptic number.

742405351 is a deficient number, since it is larger than the sum of its proper divisors (43670921).

742405351 is a wasteful number, since it uses less digits than its factorization.

742405351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43670920.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 742405351 is about 27247.1163795364. The cubic root of 742405351 is about 905.4831322449.

Adding to 742405351 its reverse (153504247), we get a palindrome (895909598).

The spelling of 742405351 in words is "seven hundred forty-two million, four hundred five thousand, three hundred fifty-one".