26197420 has 24 divisors (see below), whose sum is σ = 55120464. Its totient is φ = 10458816.

The previous prime is 26197403. The next prime is 26197421. The reversal of 26197420 is 2479162.

It is not an unprimeable number, because it can be changed into a prime (26197421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13767 + ... + 15553.

It is an arithmetic number, because the mean of its divisors is an integer number (2296686).

Almost surely, 2^26197420 is an apocalyptic number.

26197420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26197420 is an abundant number, since it is smaller than the sum of its proper divisors (28923044).

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

26197420 is a wasteful number, since it uses less digits than its factorization.

26197420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2529 (or 2527 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 26197420 is about 5118.3415282687. The cubic root of 26197420 is about 296.9975323553.

The spelling of 26197420 in words is "twenty-six million, one hundred ninety-seven thousand, four hundred twenty".