26421212 has 6 divisors (see below), whose sum is σ = 46237128. Its totient is φ = 13210604.

The previous prime is 26421193. The next prime is 26421217. The reversal of 26421212 is 21212462.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26421217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3302648 + ... + 3302655.

It is an arithmetic number, because the mean of its divisors is an integer number (7706188).

Almost surely, 2^26421212 is an apocalyptic number.

It is an amenable number.

26421212 is a deficient number, since it is larger than the sum of its proper divisors (19815916).

26421212 is a wasteful number, since it uses less digits than its factorization.

26421212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6605307 (or 6605305 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 26421212 is about 5140.1568069467. The cubic root of 26421212 is about 297.8408380882.

Adding to 26421212 its reverse (21212462), we get a palindrome (47633674).

The spelling of 26421212 in words is "twenty-six million, four hundred twenty-one thousand, two hundred twelve".