26307930 has 64 divisors (see below), whose sum is σ = 71280000. Its totient is φ = 6155520.

The previous prime is 26307899. The next prime is 26307943. The reversal of 26307930 is 3970362.

It is a happy number.

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 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, 8196 + ... + 10944.

It is an arithmetic number, because the mean of its divisors is an integer number (1113750).

Almost surely, 2^26307930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26307930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35640000).

26307930 is an abundant number, since it is smaller than the sum of its proper divisors (44972070).

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

26307930 is a wasteful number, since it uses less digits than its factorization.

26307930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2799.

The product of its (nonzero) digits is 6804, while the sum is 30.

The square root of 26307930 is about 5129.1256564838. The cubic root of 26307930 is about 297.4145601220.

The spelling of 26307930 in words is "twenty-six million, three hundred seven thousand, nine hundred thirty".