7256436 has 24 divisors (see below), whose sum is σ = 18471264. Its totient is φ = 2198880.

The previous prime is 7256401. The next prime is 7256497. The reversal of 7256436 is 6346527.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 7256397 and 7256406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27355 + ... + 27618.

It is an arithmetic number, because the mean of its divisors is an integer number (769636).

Almost surely, 2^7256436 is an apocalyptic number.

It is an amenable number.

7256436 is an abundant number, since it is smaller than the sum of its proper divisors (11214828).

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

7256436 is a wasteful number, since it uses less digits than its factorization.

7256436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54991 (or 54989 counting only the distinct ones).

The product of its digits is 30240, while the sum is 33.

The square root of 7256436 is about 2693.7772736438. Note that the first 3 decimals coincide. The cubic root of 7256436 is about 193.6010862699.

Subtracting from 7256436 its reverse (6346527), we obtain a palindrome (909909).

The spelling of 7256436 in words is "seven million, two hundred fifty-six thousand, four hundred thirty-six".