275450868 has 240 divisors, whose sum is σ = 917524608. Its totient is φ = 69984000.

The previous prime is 275450867. The next prime is 275450887. The reversal of 275450868 is 868054572.

275450868 is a `hidden beast` number, since 27 + 545 + 0 + 86 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275450867) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1521738 + ... + 1521918.

Almost surely, 2^275450868 is an apocalyptic number.

275450868 is a gapful number since it is divisible by the number (28) 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 275450868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (458762304).

275450868 is an abundant number, since it is smaller than the sum of its proper divisors (642073740).

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

275450868 is a wasteful number, since it uses less digits than its factorization.

275450868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The square root of 275450868 is about 16596.7125660475. The cubic root of 275450868 is about 650.6509203270.

The spelling of 275450868 in words is "two hundred seventy-five million, four hundred fifty thousand, eight hundred sixty-eight".