7431426 has 32 divisors (see below), whose sum is σ = 16728000. Its totient is φ = 2475684.

The previous prime is 7431419. The next prime is 7431427. The reversal of 7431426 is 6241347.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 7431426.

It is not an unprimeable number, because it can be changed into a prime (7431427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3525 + ... + 5223.

It is an arithmetic number, because the mean of its divisors is an integer number (522750).

Almost surely, 2^7431426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7431426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8364000).

7431426 is an abundant number, since it is smaller than the sum of its proper divisors (9296574).

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

7431426 is an equidigital number, since it uses as much as digits as its factorization.

7431426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722 (or 1704 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 7431426 is about 2726.0641958692. The cubic root of 7431426 is about 195.1449809385.

The spelling of 7431426 in words is "seven million, four hundred thirty-one thousand, four hundred twenty-six".