26451940 has 12 divisors (see below), whose sum is σ = 55549116. Its totient is φ = 10580768.

The previous prime is 26451917. The next prime is 26451967. The reversal of 26451940 is 4915462.

It can be written as a sum of positive squares in 2 ways, for example, as 5731236 + 20720704 = 2394^2 + 4552^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661279 + ... + 661318.

It is an arithmetic number, because the mean of its divisors is an integer number (4629093).

Almost surely, 2^26451940 is an apocalyptic number.

26451940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26451940 is an abundant number, since it is smaller than the sum of its proper divisors (29097176).

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

26451940 is a wasteful number, since it uses less digits than its factorization.

26451940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322606 (or 1322604 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 26451940 is about 5143.1449522641. The cubic root of 26451940 is about 297.9562568107.

The spelling of 26451940 in words is "twenty-six million, four hundred fifty-one thousand, nine hundred forty".