3642722 has 8 divisors (see below), whose sum is σ = 5488236. Its totient is φ = 1813312.

The previous prime is 3642721. The next prime is 3642731. The reversal of 3642722 is 2272463.

It can be written as a sum of positive squares in 2 ways, for example, as 2719201 + 923521 = 1649^2 + 961^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 3642691 and 3642700.

It is not an unprimeable number, because it can be changed into a prime (3642721) 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, 3443 + ... + 4374.

Almost surely, 2^3642722 is an apocalyptic number.

3642722 is a deficient number, since it is larger than the sum of its proper divisors (1845514).

3642722 is a wasteful number, since it uses less digits than its factorization.

3642722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8052.

The product of its digits is 4032, while the sum is 26.

The square root of 3642722 is about 1908.5916273525. The cubic root of 3642722 is about 153.8657682300.

The spelling of 3642722 in words is "three million, six hundred forty-two thousand, seven hundred twenty-two".