845064274 has 4 divisors (see below), whose sum is σ = 1267596414. Its totient is φ = 422532136.

The previous prime is 845064239. The next prime is 845064281. The reversal of 845064274 is 472460548.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 809004249 + 36060025 = 28443^2 + 6005^2 .

It is a super-2 number, since 2×845064274² = 1428267254382294152, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211266067 + ... + 211266070.

Almost surely, 2^845064274 is an apocalyptic number.

845064274 is a deficient number, since it is larger than the sum of its proper divisors (422532140).

845064274 is a wasteful number, since it uses less digits than its factorization.

845064274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422532139.

The product of its (nonzero) digits is 215040, while the sum is 40.

The square root of 845064274 is about 29069.9892328841. The cubic root of 845064274 is about 945.4311644450.

The spelling of 845064274 in words is "eight hundred forty-five million, sixty-four thousand, two hundred seventy-four".