722050641 has 45 divisors (see below), whose sum is σ = 1151593079. Its totient is φ = 435955104.

The previous prime is 722050633. The next prime is 722050643. The reversal of 722050641 is 146050227.

The square root of 722050641 is 26871.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 683561025 + 38489616 = 26145^2 + 6204^2 .

It is not a de Polignac number, because 722050641 - 2³ = 722050633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (722050643) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 13623571 + ... + 13623623.

Almost surely, 2^722050641 is an apocalyptic number.

722050641 is the 26871-st square number.

722050641 is the 13436-th centered octagonal number.

It is an amenable number.

722050641 is a deficient number, since it is larger than the sum of its proper divisors (429542438).

722050641 is an frugal number, since it uses more digits than its factorization.

722050641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The cubic root of 722050641 is about 897.1310457565.

The spelling of 722050641 in words is "seven hundred twenty-two million, fifty thousand, six hundred forty-one".