26201940 has 48 divisors (see below), whose sum is σ = 74578560. Its totient is φ = 6871680.

The previous prime is 26201939. The next prime is 26201941. The reversal of 26201940 is 4910262.

It is an interprime number because it is at equal distance from previous prime (26201939) and next prime (26201941).

It is a self number, because there is not a number n which added to its sum of digits gives 26201940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26201941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81 + ... + 7239.

It is an arithmetic number, because the mean of its divisors is an integer number (1553720).

Almost surely, 2^26201940 is an apocalyptic number.

26201940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26201940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37289280).

26201940 is an abundant number, since it is smaller than the sum of its proper divisors (48376620).

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

26201940 is a wasteful number, since it uses less digits than its factorization.

26201940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7232 (or 7230 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 26201940 is about 5118.7830585013. The cubic root of 26201940 is about 297.0146123024.

It can be divided in two parts, 2620 and 1940, that added together give a triangular number (4560 = T₉₅).

The spelling of 26201940 in words is "twenty-six million, two hundred one thousand, nine hundred forty".