3642726 has 32 divisors (see below), whose sum is σ = 7838208. Its totient is φ = 1124480.

The previous prime is 3642721. The next prime is 3642731. The reversal of 3642726 is 6272463.

It is an interprime number because it is at equal distance from previous prime (3642721) and next prime (3642731).

It is a super-2 number, since 2×3642726² = 26538905422152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3642693 and 3642702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3642721) 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 15 ways as a sum of consecutive naturals, for example, 6991 + ... + 7493.

It is an arithmetic number, because the mean of its divisors is an integer number (244944).

Almost surely, 2^3642726 is an apocalyptic number.

3642726 is an abundant number, since it is smaller than the sum of its proper divisors (4195482).

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

3642726 is a wasteful number, since it uses less digits than its factorization.

3642726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596.

The product of its digits is 12096, while the sum is 30.

The square root of 3642726 is about 1908.5926752453. The cubic root of 3642726 is about 153.8658245489.

The spelling of 3642726 in words is "three million, six hundred forty-two thousand, seven hundred twenty-six".