7422426 has 48 divisors (see below), whose sum is σ = 18476640. Its totient is φ = 2129760.

The previous prime is 7422413. The next prime is 7422431. The reversal of 7422426 is 6242247.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 7422426.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2776 + ... + 4748.

It is an arithmetic number, because the mean of its divisors is an integer number (384930).

Almost surely, 2^7422426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7422426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9238320).

7422426 is an abundant number, since it is smaller than the sum of its proper divisors (11054214).

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

7422426 is a wasteful number, since it uses less digits than its factorization.

7422426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011 (or 2008 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 7422426 is about 2724.4129642916. The cubic root of 7422426 is about 195.0661708371.

It can be divided in two parts, 74 and 22426, that added together give a square (22500 = 150²).

The spelling of 7422426 in words is "seven million, four hundred twenty-two thousand, four hundred twenty-six".