722402 has 6 divisors (see below), whose sum is σ = 1085409. Its totient is φ = 360600.

The previous prime is 722389. The next prime is 722411. The reversal of 722402 is 204227.

It can be written as a sum of positive squares in 2 ways, for example, as 625681 + 96721 = 791^2 + 311^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=601.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 902 + ... + 1502.

2⁷²²⁴⁰² is an apocalyptic number.

722402 is a deficient number, since it is larger than the sum of its proper divisors (363007).

722402 is an frugal number, since it uses more digits than its factorization.

722402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204 (or 603 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 722402 is about 849.9423509862. The cubic root of 722402 is about 89.7276540608.

Adding to 722402 its reverse (204227), we get a palindrome (926629).

The spelling of 722402 in words is "seven hundred twenty-two thousand, four hundred two", and thus it is an iban number.