27390000 has 200 divisors, whose sum is σ = 97618752. Its totient is φ = 6560000.

The previous prime is 27389993. The next prime is 27390023. The reversal of 27390000 is 9372.

It is a tau number, because it is divible by the number of its divisors (200).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 329959 + ... + 330041.

Almost surely, 2^27390000 is an apocalyptic number.

27390000 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 27390000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48809376).

27390000 is an abundant number, since it is smaller than the sum of its proper divisors (70228752).

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

27390000 is a wasteful number, since it uses less digits than its factorization.

27390000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 27390000 is about 5233.5456432518. The cubic root of 27390000 is about 301.4375449897.

Adding to 27390000 its reverse (9372), we get a palindrome (27399372).

The spelling of 27390000 in words is "twenty-seven million, three hundred ninety thousand".