4006722 has 24 divisors (see below), whose sum is σ = 8192016. Its totient is φ = 1306344.

The previous prime is 4006721. The next prime is 4006729. The reversal of 4006722 is 2276004.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4006721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37393 + ... + 37499.

It is an arithmetic number, because the mean of its divisors is an integer number (341334).

Almost surely, 2^4006722 is an apocalyptic number.

4006722 is an abundant number, since it is smaller than the sum of its proper divisors (4185294).

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

4006722 is a wasteful number, since it uses less digits than its factorization.

4006722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 191 counting only the distinct ones).

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

The square root of 4006722 is about 2001.6797945725. The cubic root of 4006722 is about 158.8289763483.

The spelling of 4006722 in words is "four million, six thousand, seven hundred twenty-two".