26223428 has 36 divisors (see below), whose sum is σ = 58241232. Its totient is φ = 10216080.

The previous prime is 26223413. The next prime is 26223437. The reversal of 26223428 is 82432262.

It is a self number, because there is not a number n which added to its sum of digits gives 26223428.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3926 + ... + 8237.

It is an arithmetic number, because the mean of its divisors is an integer number (1617812).

Almost surely, 2^26223428 is an apocalyptic number.

26223428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

26223428 is an abundant number, since it is smaller than the sum of its proper divisors (32017804).

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

26223428 is a wasteful number, since it uses less digits than its factorization.

26223428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12192 (or 12183 counting only the distinct ones).

The product of its digits is 9216, while the sum is 29.

The square root of 26223428 is about 5120.8815647308. The cubic root of 26223428 is about 297.0957832145.

It can be divided in two parts, 262234 and 28, that added together give a palindrome (262262).

The spelling of 26223428 in words is "twenty-six million, two hundred twenty-three thousand, four hundred twenty-eight".