27049400 has 72 divisors (see below), whose sum is σ = 72394920. Its totient is φ = 9207360.

The previous prime is 27049387. The next prime is 27049411. The reversal of 27049400 is 494072.

It is a self number, because there is not a number n which added to its sum of digits gives 27049400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 194531 + ... + 194669.

It is an arithmetic number, because the mean of its divisors is an integer number (1005485).

Almost surely, 2^27049400 is an apocalyptic number.

27049400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27049400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36197460).

27049400 is an abundant number, since it is smaller than the sum of its proper divisors (45345520).

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

27049400 is a wasteful number, since it uses less digits than its factorization.

27049400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 27049400 is about 5200.9037676158. The cubic root of 27049400 is about 300.1828514914.

Multiplying 27049400 by its product of nonzero digits (2016), we get a square (54531590400 = 233520²).

The spelling of 27049400 in words is "twenty-seven million, forty-nine thousand, four hundred".