27957450 has 48 divisors (see below), whose sum is σ = 71736480. Its totient is φ = 7197120.

The previous prime is 27957431. The next prime is 27957451. The reversal of 27957450 is 5475972.

It is a junction number, because it is equal to n+sod(n) for n = 27957399 and 27957408.

It is not an unprimeable number, because it can be changed into a prime (27957451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1137 + ... + 7563.

It is an arithmetic number, because the mean of its divisors is an integer number (1494510).

Almost surely, 2^27957450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27957450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35868240).

27957450 is an abundant number, since it is smaller than the sum of its proper divisors (43779030).

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

27957450 is a wasteful number, since it uses less digits than its factorization.

27957450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6471 (or 6466 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 39.

The square root of 27957450 is about 5287.4804964179. The cubic root of 27957450 is about 303.5050015144.

The spelling of 27957450 in words is "twenty-seven million, nine hundred fifty-seven thousand, four hundred fifty".