722500274 has 4 divisors (see below), whose sum is σ = 1083750414. Its totient is φ = 361250136.

The previous prime is 722500243. The next prime is 722500277. The reversal of 722500274 is 472005227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 472005227 = 53 ⋅8905759.

It can be written as a sum of positive squares in only one way, i.e., 552015025 + 170485249 = 23495^2 + 13057^2 .

It is not an unprimeable number, because it can be changed into a prime (722500277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180625067 + ... + 180625070.

Almost surely, 2^722500274 is an apocalyptic number.

722500274 is a deficient number, since it is larger than the sum of its proper divisors (361250140).

722500274 is a wasteful number, since it uses less digits than its factorization.

722500274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361250139.

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 722500274 is about 26879.3652082783. The cubic root of 722500274 is about 897.3172266138.

The spelling of 722500274 in words is "seven hundred twenty-two million, five hundred thousand, two hundred seventy-four".