561182274 has 48 divisors (see below), whose sum is σ = 1328970240. Its totient is φ = 170375040.

The previous prime is 561182273. The next prime is 561182327. The reversal of 561182274 is 472281165.

561182274 is a `hidden beast` number, since 561 + 1 + 8 + 22 + 74 = 666.

It is a super-2 number, since 2×561182274² = 629851089303622152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (561182273) 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, 20094 + ... + 39065.

It is an arithmetic number, because the mean of its divisors is an integer number (27686880).

Almost surely, 2^561182274 is an apocalyptic number.

561182274 is an abundant number, since it is smaller than the sum of its proper divisors (767787966).

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

561182274 is a wasteful number, since it uses less digits than its factorization.

561182274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59215 (or 59212 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 561182274 is about 23689.2860593138. The cubic root of 561182274 is about 824.8367103825.

The spelling of 561182274 in words is "five hundred sixty-one million, one hundred eighty-two thousand, two hundred seventy-four".