26428040 has 32 divisors (see below), whose sum is σ = 59633280. Its totient is φ = 10540992.

The previous prime is 26428007. The next prime is 26428043. The reversal of 26428040 is 4082462.

It is not an unprimeable number, because it can be changed into a prime (26428043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17807 + ... + 19233.

It is an arithmetic number, because the mean of its divisors is an integer number (1863540).

Almost surely, 2^26428040 is an apocalyptic number.

26428040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26428040 is an abundant number, since it is smaller than the sum of its proper divisors (33205240).

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

26428040 is a wasteful number, since it uses less digits than its factorization.

26428040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1901 (or 1897 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 26428040 is about 5140.8209461136. The cubic root of 26428040 is about 297.8664927539.

The spelling of 26428040 in words is "twenty-six million, four hundred twenty-eight thousand, forty".