26749040 has 20 divisors (see below), whose sum is σ = 62191704. Its totient is φ = 10699584.

The previous prime is 26749033. The next prime is 26749043. The reversal of 26749040 is 4094762.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×26749040² = 1431022281843200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26748988 and 26749006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26749043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167102 + ... + 167261.

Almost surely, 2^26749040 is an apocalyptic number.

26749040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26749040 is an abundant number, since it is smaller than the sum of its proper divisors (35442664).

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

26749040 is a wasteful number, since it uses less digits than its factorization.

26749040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334376 (or 334370 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 26749040 is about 5171.9474088587. The cubic root of 26749040 is about 299.0676237691.

The spelling of 26749040 in words is "twenty-six million, seven hundred forty-nine thousand, forty".