40722 has 16 divisors (see below), whose sum is σ = 88992. Its totient is φ = 12320.

The previous prime is 40709. The next prime is 40739. The reversal of 40722 is 22704.

40722 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

40722 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, 243 + ... + 374.

It is an arithmetic number, because the mean of its divisors is an integer number (5562).

2⁴⁰⁷²² is an apocalyptic number.

40722 is an abundant number, since it is smaller than the sum of its proper divisors (48270).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44496).

40722 is a wasteful number, since it uses less digits than its factorization.

40722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633.

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 40722 is about 201.7969276278. The cubic root of 40722 is about 34.4040602743.

The spelling of 40722 in words is "forty thousand, seven hundred twenty-two", and thus it is an iban number.