27398442 has 16 divisors (see below), whose sum is σ = 54852480. Its totient is φ = 9123552.

The previous prime is 27398431. The next prime is 27398443. The reversal of 27398442 is 24489372.

It is a self number, because there is not a number n which added to its sum of digits gives 27398442.

It is not an unprimeable number, because it can be changed into a prime (27398443) 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, 6934 + ... + 10142.

It is an arithmetic number, because the mean of its divisors is an integer number (3428280).

Almost surely, 2^27398442 is an apocalyptic number.

27398442 is an abundant number, since it is smaller than the sum of its proper divisors (27454038).

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

27398442 is a wasteful number, since it uses less digits than its factorization.

27398442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4637.

The product of its digits is 96768, while the sum is 39.

The square root of 27398442 is about 5234.3521089052. The cubic root of 27398442 is about 301.4685109671.

The spelling of 27398442 in words is "twenty-seven million, three hundred ninety-eight thousand, four hundred forty-two".