7343428 has 12 divisors (see below), whose sum is σ = 13164732. Its totient is φ = 3582080.

The previous prime is 7343423. The next prime is 7343429. The reversal of 7343428 is 8243437.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3928324 + 3415104 = 1982^2 + 1848^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7343428.

It is not an unprimeable number, because it can be changed into a prime (7343423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22225 + ... + 22552.

It is an arithmetic number, because the mean of its divisors is an integer number (1097061).

Almost surely, 2^7343428 is an apocalyptic number.

It is an amenable number.

7343428 is a deficient number, since it is larger than the sum of its proper divisors (5821304).

7343428 is a wasteful number, since it uses less digits than its factorization.

7343428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44822 (or 44820 counting only the distinct ones).

The product of its digits is 16128, while the sum is 31.

The square root of 7343428 is about 2709.8760119238. The cubic root of 7343428 is about 194.3716614915.

Subtracting 7343428 from its reverse (8243437), we obtain a palindrome (900009).

It can be divided in two parts, 734 and 3428, that multiplied together give a palindrome (2516152).

The spelling of 7343428 in words is "seven million, three hundred forty-three thousand, four hundred twenty-eight".