26642970 has 96 divisors (see below), whose sum is σ = 73816704. Its totient is φ = 6652800.

The previous prime is 26642939. The next prime is 26642971. The reversal of 26642970 is 7924662.

It is a happy number.

26642970 is a `hidden beast` number, since 2 + 6 + 642 + 9 + 7 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26642971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 126165 + ... + 126375.

It is an arithmetic number, because the mean of its divisors is an integer number (768924).

Almost surely, 2^26642970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26642970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36908352).

26642970 is an abundant number, since it is smaller than the sum of its proper divisors (47173734).

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

26642970 is a wasteful number, since it uses less digits than its factorization.

26642970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 26642970 is about 5161.6828651129. The cubic root of 26642970 is about 298.6717949158.

The spelling of 26642970 in words is "twenty-six million, six hundred forty-two thousand, nine hundred seventy".