722046 has 16 divisors (see below), whose sum is σ = 1555344. Its totient is φ = 222144.

The previous prime is 722027. The next prime is 722047. The reversal of 722046 is 640227.

It is a happy number.

722046 is nontrivially palindromic in base 5.

722046 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×722046² = 1042700852232, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 722046.

It is not an unprimeable number, because it can be changed into a prime (722047) by changing a digit.

722046 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4551 + ... + 4706.

It is an arithmetic number, because the mean of its divisors is an integer number (97209).

2⁷²²⁰⁴⁶ is an apocalyptic number.

722046 is an abundant number, since it is smaller than the sum of its proper divisors (833298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

722046 is a wasteful number, since it uses less digits than its factorization.

722046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9275.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 722046 is about 849.7328992101. The cubic root of 722046 is about 89.7129123641.

The spelling of 722046 in words is "seven hundred twenty-two thousand, forty-six".