26641940 has 48 divisors (see below), whose sum is σ = 61678848. Its totient is φ = 9604224.

The previous prime is 26641939. The next prime is 26641943. The reversal of 26641940 is 4914662.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 26641897 and 26641906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26641943) 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, 9989 + ... + 12371.

It is an arithmetic number, because the mean of its divisors is an integer number (1284976).

Almost surely, 2^26641940 is an apocalyptic number.

26641940 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 26641940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30839424).

26641940 is an abundant number, since it is smaller than the sum of its proper divisors (35036908).

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

26641940 is a wasteful number, since it uses less digits than its factorization.

26641940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2448 (or 2446 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 26641940 is about 5161.5830904869. The cubic root of 26641940 is about 298.6679460466.

The spelling of 26641940 in words is "twenty-six million, six hundred forty-one thousand, nine hundred forty".