742865741 has 4 divisors (see below), whose sum is σ = 766829184. Its totient is φ = 718902300.

The previous prime is 742865731. The next prime is 742865821. The reversal of 742865741 is 147568247.

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: 147568247 = 37 ⋅3988331.

It is a cyclic number.

It is not a de Polignac number, because 742865741 - 2¹⁸ = 742603597 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 742865692 and 742865701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742865701) 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, 11981675 + ... + 11981736.

It is an arithmetic number, because the mean of its divisors is an integer number (191707296).

Almost surely, 2^742865741 is an apocalyptic number.

It is an amenable number.

742865741 is a deficient number, since it is larger than the sum of its proper divisors (23963443).

742865741 is a wasteful number, since it uses less digits than its factorization.

742865741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23963442.

The product of its digits is 376320, while the sum is 44.

The square root of 742865741 is about 27255.5634871121. The cubic root of 742865741 is about 905.6702668678.

The spelling of 742865741 in words is "seven hundred forty-two million, eight hundred sixty-five thousand, seven hundred forty-one".