27402426 has 12 divisors (see below), whose sum is σ = 59371962. Its totient is φ = 9134136.

The previous prime is 27402413. The next prime is 27402439. The reversal of 27402426 is 62420472.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (27402413) and next prime (27402439).

It can be written as a sum of positive squares in only one way, i.e., 20385225 + 7017201 = 4515^2 + 2649^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 27402426.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 761161 + ... + 761196.

Almost surely, 2^27402426 is an apocalyptic number.

27402426 is an abundant number, since it is smaller than the sum of its proper divisors (31969536).

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

27402426 is a wasteful number, since it uses less digits than its factorization.

27402426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1522365 (or 1522362 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 27402426 is about 5234.7326579301. The cubic root of 27402426 is about 301.4831224103.

Adding to 27402426 its reverse (62420472), we get a palindrome (89822898).

The spelling of 27402426 in words is "twenty-seven million, four hundred two thousand, four hundred twenty-six".