7493428 has 6 divisors (see below), whose sum is σ = 13113506. Its totient is φ = 3746712.

The previous prime is 7493419. The next prime is 7493443. The reversal of 7493428 is 8243947.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7193124 + 300304 = 2682^2 + 548^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 936675 + ... + 936682.

Almost surely, 2^7493428 is an apocalyptic number.

It is an amenable number.

7493428 is a deficient number, since it is larger than the sum of its proper divisors (5620078).

7493428 is a wasteful number, since it uses less digits than its factorization.

7493428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1873361 (or 1873359 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 7493428 is about 2737.4126470081. The cubic root of 7493428 is about 195.6861908833.

It can be divided in two parts, 7493 and 428, that added together give a square (7921 = 89²).

The spelling of 7493428 in words is "seven million, four hundred ninety-three thousand, four hundred twenty-eight".