27990496 has 36 divisors (see below), whose sum is σ = 58183272. Its totient is φ = 13253184.

The previous prime is 27990493. The next prime is 27990503. The reversal of 27990496 is 69409972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27990493) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10341 + ... + 12763.

It is an arithmetic number, because the mean of its divisors is an integer number (1616202).

Almost surely, 2^27990496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27990496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29091636).

27990496 is an abundant number, since it is smaller than the sum of its proper divisors (30192776).

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

27990496 is a wasteful number, since it uses less digits than its factorization.

27990496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2471 (or 2444 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 27990496 is about 5290.6045023230. The cubic root of 27990496 is about 303.6245364644.

The spelling of 27990496 in words is "twenty-seven million, nine hundred ninety thousand, four hundred ninety-six".