274485285 has 24 divisors (see below), whose sum is σ = 476554104. Its totient is φ = 146152320.

The previous prime is 274485269. The next prime is 274485301. The reversal of 274485285 is 582584472.

It is an interprime number because it is at equal distance from previous prime (274485269) and next prime (274485301).

It can be written as a sum of positive squares in 4 ways, for example, as 1640961 + 272844324 = 1281^2 + 16518^2 .

It is not a de Polignac number, because 274485285 - 2⁴ = 274485269 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 274485285.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24715 + ... + 34055.

It is an arithmetic number, because the mean of its divisors is an integer number (19856421).

Almost surely, 2^274485285 is an apocalyptic number.

It is an amenable number.

274485285 is a deficient number, since it is larger than the sum of its proper divisors (202068819).

274485285 is a wasteful number, since it uses less digits than its factorization.

274485285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10005 (or 10002 counting only the distinct ones).

The product of its digits is 716800, while the sum is 45.

The square root of 274485285 is about 16567.5974419950. The cubic root of 274485285 is about 649.8897525050.

The spelling of 274485285 in words is "two hundred seventy-four million, four hundred eighty-five thousand, two hundred eighty-five".