7427742 has 64 divisors (see below), whose sum is σ = 18330624. Its totient is φ = 1958400.

The previous prime is 7427737. The next prime is 7427779. The reversal of 7427742 is 2477247.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 72063 + ... + 72165.

It is an arithmetic number, because the mean of its divisors is an integer number (286416).

Almost surely, 2^7427742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7427742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9165312).

7427742 is an abundant number, since it is smaller than the sum of its proper divisors (10902882).

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

7427742 is a wasteful number, since it uses less digits than its factorization.

7427742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233.

The product of its digits is 21952, while the sum is 33.

The square root of 7427742 is about 2725.3884126854. The cubic root of 7427742 is about 195.1127290334.

The spelling of 7427742 in words is "seven million, four hundred twenty-seven thousand, seven hundred forty-two".