26421428 has 12 divisors (see below), whose sum is σ = 50440992. Its totient is φ = 12009720.

The previous prime is 26421427. The next prime is 26421463. The reversal of 26421428 is 82412462.

It is a super-3 number, since 3×26421428³ (a number of 23 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 26421428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26421427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300200 + ... + 300287.

It is an arithmetic number, because the mean of its divisors is an integer number (4203416).

Almost surely, 2^26421428 is an apocalyptic number.

It is an amenable number.

26421428 is a deficient number, since it is larger than the sum of its proper divisors (24019564).

26421428 is a wasteful number, since it uses less digits than its factorization.

26421428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600502 (or 600500 counting only the distinct ones).

The product of its digits is 6144, while the sum is 29.

The square root of 26421428 is about 5140.1778179359. The cubic root of 26421428 is about 297.8416497271.

The spelling of 26421428 in words is "twenty-six million, four hundred twenty-one thousand, four hundred twenty-eight".