26023620 has 48 divisors (see below), whose sum is σ = 83276928. Its totient is φ = 5948160.

The previous prime is 26023619. The next prime is 26023631. The reversal of 26023620 is 2632062.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 30561 + ... + 31400.

It is an arithmetic number, because the mean of its divisors is an integer number (1734936).

Almost surely, 2^26023620 is an apocalyptic number.

26023620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26023620 is an abundant number, since it is smaller than the sum of its proper divisors (57253308).

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

26023620 is a wasteful number, since it uses less digits than its factorization.

26023620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61980 (or 61978 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 26023620 is about 5101.3351193585. The cubic root of 26023620 is about 296.3392901461.

Adding to 26023620 its reverse (2632062), we get a palindrome (28655682).

The spelling of 26023620 in words is "twenty-six million, twenty-three thousand, six hundred twenty".