722814081 has 32 divisors (see below), whose sum is σ = 1078990848. Its totient is φ = 426651840.

The previous prime is 722814061. The next prime is 722814083. The reversal of 722814081 is 180418227.

It is a happy number.

It is not a de Polignac number, because 722814081 - 2¹⁵ = 722781313 is a prime.

It is a super-2 number, since 2×722814081² = 1044920391383749122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (722814083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 351051 + ... + 353103.

It is an arithmetic number, because the mean of its divisors is an integer number (33718464).

Almost surely, 2^722814081 is an apocalyptic number.

It is an amenable number.

722814081 is a deficient number, since it is larger than the sum of its proper divisors (356176767).

722814081 is a wasteful number, since it uses less digits than its factorization.

722814081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2341.

The product of its (nonzero) digits is 7168, while the sum is 33.

The square root of 722814081 is about 26885.2018962105. The cubic root of 722814081 is about 897.4471198376.

The spelling of 722814081 in words is "seven hundred twenty-two million, eight hundred fourteen thousand, eighty-one".