722046040 has 16 divisors (see below), whose sum is σ = 1624603680. Its totient is φ = 288818400.

The previous prime is 722046029. The next prime is 722046041. The reversal of 722046040 is 40640227.

It is a junction number, because it is equal to n+sod(n) for n = 722045996 and 722046014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722046041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9025536 + ... + 9025615.

It is an arithmetic number, because the mean of its divisors is an integer number (101537730).

Almost surely, 2^722046040 is an apocalyptic number.

It is an amenable number.

722046040 is an abundant number, since it is smaller than the sum of its proper divisors (902557640).

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

722046040 is a wasteful number, since it uses less digits than its factorization.

722046040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18051162 (or 18051158 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 722046040 is about 26870.9143871213. The cubic root of 722046040 is about 897.1291402074.

Adding to 722046040 its reverse (40640227), we get a palindrome (762686267).

The spelling of 722046040 in words is "seven hundred twenty-two million, forty-six thousand, forty".