3642736 has 10 divisors (see below), whose sum is σ = 7057832. Its totient is φ = 1821360.

The previous prime is 3642733. The next prime is 3642739. The reversal of 3642736 is 6372463.

It is an interprime number because it is at equal distance from previous prime (3642733) and next prime (3642739).

It is a junction number, because it is equal to n+sod(n) for n = 3642698 and 3642707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3642731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113820 + ... + 113851.

Almost surely, 2^3642736 is an apocalyptic number.

It is an amenable number.

3642736 is a deficient number, since it is larger than the sum of its proper divisors (3415096).

3642736 is a wasteful number, since it uses less digits than its factorization.

3642736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227679 (or 227673 counting only the distinct ones).

The product of its digits is 18144, while the sum is 31.

The square root of 3642736 is about 1908.5952949748. The cubic root of 3642736 is about 153.8659653461.

It can be divided in two parts, 36427 and 36, that added together give a palindrome (36463).

The spelling of 3642736 in words is "three million, six hundred forty-two thousand, seven hundred thirty-six".