742647126 has 16 divisors (see below), whose sum is σ = 1599547824. Its totient is φ = 228506784.

The previous prime is 742647121. The next prime is 742647151. The reversal of 742647126 is 621746247.

742647126 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742647121) 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, 4760481 + ... + 4760636.

It is an arithmetic number, because the mean of its divisors is an integer number (99971739).

Almost surely, 2^742647126 is an apocalyptic number.

742647126 is an abundant number, since it is smaller than the sum of its proper divisors (856900698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

742647126 is a wasteful number, since it uses less digits than its factorization.

742647126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9521135.

The product of its digits is 112896, while the sum is 39.

The square root of 742647126 is about 27251.5527264044. The cubic root of 742647126 is about 905.5814161196.

The spelling of 742647126 in words is "seven hundred forty-two million, six hundred forty-seven thousand, one hundred twenty-six".