274212644 has 6 divisors (see below), whose sum is σ = 479872134. Its totient is φ = 137106320.

The previous prime is 274212641. The next prime is 274212671. The reversal of 274212644 is 446212472.

It can be written as a sum of positive squares in only one way, i.e., 156750400 + 117462244 = 12520^2 + 10838^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 274212644.

It is not an unprimeable number, because it can be changed into a prime (274212641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34276577 + ... + 34276584.

It is an arithmetic number, because the mean of its divisors is an integer number (79978689).

Almost surely, 2^274212644 is an apocalyptic number.

It is an amenable number.

274212644 is a deficient number, since it is larger than the sum of its proper divisors (205659490).

274212644 is a wasteful number, since it uses less digits than its factorization.

274212644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68553165 (or 68553163 counting only the distinct ones).

The product of its digits is 21504, while the sum is 32.

The square root of 274212644 is about 16559.3672584432. The cubic root of 274212644 is about 649.6745068562.

The spelling of 274212644 in words is "two hundred seventy-four million, two hundred twelve thousand, six hundred forty-four".