742113421 has 8 divisors (see below), whose sum is σ = 849478784. Its totient is φ = 635085360.

The previous prime is 742113397. The next prime is 742113443. The reversal of 742113421 is 124311247.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 742113421 - 2²³ = 733724813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742113521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79590 + ... + 88423.

It is an arithmetic number, because the mean of its divisors is an integer number (106184848).

Almost surely, 2^742113421 is an apocalyptic number.

It is an amenable number.

742113421 is a deficient number, since it is larger than the sum of its proper divisors (107365363).

742113421 is a wasteful number, since it uses less digits than its factorization.

742113421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168651.

The product of its digits is 1344, while the sum is 25.

The square root of 742113421 is about 27241.7587721498. The cubic root of 742113421 is about 905.3644314364.

Adding to 742113421 its reverse (124311247), we get a palindrome (866424668).

The spelling of 742113421 in words is "seven hundred forty-two million, one hundred thirteen thousand, four hundred twenty-one".