26040729 has 32 divisors (see below), whose sum is σ = 41263488. Its totient is φ = 14400000.

The previous prime is 26040709. The next prime is 26040731. The reversal of 26040729 is 92704062.

It is a happy number.

It is not a de Polignac number, because 26040729 - 2⁷ = 26040601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26040696 and 26040705.

It is not an unprimeable number, because it can be changed into a prime (26040709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43029 + ... + 43629.

It is an arithmetic number, because the mean of its divisors is an integer number (1289484).

Almost surely, 2^26040729 is an apocalyptic number.

It is an amenable number.

26040729 is a deficient number, since it is larger than the sum of its proper divisors (15222759).

26040729 is a wasteful number, since it uses less digits than its factorization.

26040729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 26040729 is about 5103.0117577760. The cubic root of 26040729 is about 296.4042178058.

The spelling of 26040729 in words is "twenty-six million, forty thousand, seven hundred twenty-nine".