26938428 has 96 divisors (see below), whose sum is σ = 75479040. Its totient is φ = 7381440.

The previous prime is 26938403. The next prime is 26938441. The reversal of 26938428 is 82483962.

It is a super-2 number, since 2×26938428² = 1451357806222368, 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 26938428.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57451 + ... + 57917.

It is an arithmetic number, because the mean of its divisors is an integer number (786240).

Almost surely, 2^26938428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26938428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37739520).

26938428 is an abundant number, since it is smaller than the sum of its proper divisors (48540612).

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

26938428 is a wasteful number, since it uses less digits than its factorization.

26938428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527 (or 525 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 26938428 is about 5190.2242726110. The cubic root of 26938428 is about 299.7717819880.

The spelling of 26938428 in words is "twenty-six million, nine hundred thirty-eight thousand, four hundred twenty-eight".