7428269 has 4 divisors (see below), whose sum is σ = 7865244. Its totient is φ = 6991296.

The previous prime is 7428227. The next prime is 7428271. The reversal of 7428269 is 9628247.

7428269 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9628247 = 163 ⋅59069.

It can be written as a sum of positive squares in 2 ways, for example, as 6959044 + 469225 = 2638^2 + 685^2 .

It is a cyclic number.

It is not a de Polignac number, because 7428269 - 2⁸ = 7428013 is a prime.

It is a super-2 number, since 2×7428269² = 110358360672722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7428469) 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, 218462 + ... + 218495.

It is an arithmetic number, because the mean of its divisors is an integer number (1966311).

Almost surely, 2^7428269 is an apocalyptic number.

It is an amenable number.

7428269 is a deficient number, since it is larger than the sum of its proper divisors (436975).

7428269 is a wasteful number, since it uses less digits than its factorization.

7428269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436974.

The product of its digits is 48384, while the sum is 38.

The square root of 7428269 is about 2725.4850944373. The cubic root of 7428269 is about 195.1173433552.

The spelling of 7428269 in words is "seven million, four hundred twenty-eight thousand, two hundred sixty-nine".