275466408 has 128 divisors (see below), whose sum is σ = 834432000. Its totient is φ = 74027520.

The previous prime is 275466397. The next prime is 275466421. The reversal of 275466408 is 804664572.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 275466408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 673308 + ... + 673716.

It is an arithmetic number, because the mean of its divisors is an integer number (6519000).

Almost surely, 2^275466408 is an apocalyptic number.

275466408 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 275466408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (417216000).

275466408 is an abundant number, since it is smaller than the sum of its proper divisors (558965592).

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

275466408 is a wasteful number, since it uses less digits than its factorization.

275466408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655 (or 651 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The square root of 275466408 is about 16597.1807244484. The cubic root of 275466408 is about 650.6631559334.

The spelling of 275466408 in words is "two hundred seventy-five million, four hundred sixty-six thousand, four hundred eight".