26391312 has 40 divisors (see below), whose sum is σ = 75754080. Its totient is φ = 8796960.

The previous prime is 26391307. The next prime is 26391317. The reversal of 26391312 is 21319362.

26391312 is a `hidden beast` number, since 2 + 639 + 13 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (26391307) and next prime (26391317).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (26391317) 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, 30114 + ... + 30977.

It is an arithmetic number, because the mean of its divisors is an integer number (1893852).

Almost surely, 2^26391312 is an apocalyptic number.

It is an amenable number.

26391312 is an abundant number, since it is smaller than the sum of its proper divisors (49362768).

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

26391312 is a wasteful number, since it uses less digits than its factorization.

26391312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61108 (or 61096 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 26391312 is about 5137.2475120438. The cubic root of 26391312 is about 297.7284435155.

The spelling of 26391312 in words is "twenty-six million, three hundred ninety-one thousand, three hundred twelve".