722476145 has 8 divisors (see below), whose sum is σ = 867156840. Its totient is φ = 577857280.

The previous prime is 722476103. The next prime is 722476229. The reversal of 722476145 is 541674227.

It can be written as a sum of positive squares in 4 ways, for example, as 24671089 + 697805056 = 4967^2 + 26416^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 722476145 - 2¹⁸ = 722214001 is a prime.

It is a super-2 number, since 2×722476145² = 1043943560188122050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 722476099 and 722476108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16121 + ... + 41289.

It is an arithmetic number, because the mean of its divisors is an integer number (108394605).

Almost surely, 2^722476145 is an apocalyptic number.

It is an amenable number.

722476145 is a deficient number, since it is larger than the sum of its proper divisors (144680695).

722476145 is a wasteful number, since it uses less digits than its factorization.

722476145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30915.

The product of its digits is 94080, while the sum is 38.

The square root of 722476145 is about 26878.9163658061. The cubic root of 722476145 is about 897.3072374095.

The spelling of 722476145 in words is "seven hundred twenty-two million, four hundred seventy-six thousand, one hundred forty-five".