11726428 has 24 divisors (see below), whose sum is σ = 23778272. Its totient is φ = 4955904.

The previous prime is 11726419. The next prime is 11726437. The reversal of 11726428 is 82462711.

It is an interprime number because it is at equal distance from previous prime (11726419) and next prime (11726437).

It is a super-2 number, since 2×11726428² = 275018227278368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11726428.

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, 825 + ... + 4912.

Almost surely, 2^11726428 is an apocalyptic number.

It is an amenable number.

11726428 is an abundant number, since it is smaller than the sum of its proper divisors (12051844).

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

11726428 is a wasteful number, since it uses less digits than its factorization.

11726428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5821 (or 5819 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The square root of 11726428 is about 3424.3872444570. The cubic root of 11726428 is about 227.1896698586.

The spelling of 11726428 in words is "eleven million, seven hundred twenty-six thousand, four hundred twenty-eight".