26651940 has 192 divisors, whose sum is σ = 92897280. Its totient is φ = 5575680.

The previous prime is 26651939. The next prime is 26651983. The reversal of 26651940 is 4915662.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 299416 + ... + 299504.

It is an arithmetic number, because the mean of its divisors is an integer number (483840).

Almost surely, 2^26651940 is an apocalyptic number.

26651940 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 26651940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46448640).

26651940 is an abundant number, since it is smaller than the sum of its proper divisors (66245340).

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

26651940 is a wasteful number, since it uses less digits than its factorization.

26651940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 26651940 is about 5162.5516946564. The cubic root of 26651940 is about 298.7053095151.

The spelling of 26651940 in words is "twenty-six million, six hundred fifty-one thousand, nine hundred forty".