4129722 has 24 divisors (see below), whose sum is σ = 8988564. Its totient is φ = 1370304.

The previous prime is 4129721. The next prime is 4129729. The reversal of 4129722 is 2279214.

It can be written as a sum of positive squares in 2 ways, for example, as 4124961 + 4761 = 2031^2 + 69^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4129721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5268 + ... + 6000.

Almost surely, 2^4129722 is an apocalyptic number.

4129722 is an abundant number, since it is smaller than the sum of its proper divisors (4858842).

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

4129722 is a wasteful number, since it uses less digits than its factorization.

4129722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054 (or 1051 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 4129722 is about 2032.1717447106. The cubic root of 4129722 is about 160.4378890309.

It can be divided in two parts, 4129 and 722, that added together give a triangular number (4851 = T₉₈).

The spelling of 4129722 in words is "four million, one hundred twenty-nine thousand, seven hundred twenty-two".