26729130 has 64 divisors (see below), whose sum is σ = 67931136. Its totient is φ = 6720000.

The previous prime is 26729107. The next prime is 26729141. The reversal of 26729130 is 3192762.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37780 + ... + 38480.

It is an arithmetic number, because the mean of its divisors is an integer number (1061424).

Almost surely, 2^26729130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26729130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33965568).

26729130 is an abundant number, since it is smaller than the sum of its proper divisors (41202006).

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

26729130 is a wasteful number, since it uses less digits than its factorization.

26729130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 26729130 is about 5170.0222436659. The cubic root of 26729130 is about 298.9934041043.

The spelling of 26729130 in words is "twenty-six million, seven hundred twenty-nine thousand, one hundred thirty".