26021970 has 96 divisors (see below), whose sum is σ = 76108032. Its totient is φ = 6120576.

The previous prime is 26021969. The next prime is 26021977. The reversal of 26021970 is 7912062.

It is not an unprimeable number, because it can be changed into a prime (26021977) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26427 + ... + 27393.

It is an arithmetic number, because the mean of its divisors is an integer number (792792).

Almost surely, 2^26021970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26021970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38054016).

26021970 is an abundant number, since it is smaller than the sum of its proper divisors (50086062).

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

26021970 is a wasteful number, since it uses less digits than its factorization.

26021970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016 (or 1013 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 26021970 is about 5101.1733944260. The cubic root of 26021970 is about 296.3330269877. Note that the first 3 decimals are identical.

The spelling of 26021970 in words is "twenty-six million, twenty-one thousand, nine hundred seventy".