275418906 has 48 divisors (see below), whose sum is σ = 642095424. Its totient is φ = 78528576.

The previous prime is 275418893. The next prime is 275418907. The reversal of 275418906 is 609814572.

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

It is not an unprimeable number, because it can be changed into a prime (275418907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 279691 + ... + 280673.

It is an arithmetic number, because the mean of its divisors is an integer number (13376988).

Almost surely, 2^275418906 is an apocalyptic number.

275418906 is an abundant number, since it is smaller than the sum of its proper divisors (366676518).

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

275418906 is a wasteful number, since it uses less digits than its factorization.

275418906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1955 (or 1948 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 275418906 is about 16595.7496365786. The cubic root of 275418906 is about 650.6257532143.

The spelling of 275418906 in words is "two hundred seventy-five million, four hundred eighteen thousand, nine hundred six".