3642730 has 32 divisors (see below), whose sum is σ = 8072064. Its totient is φ = 1152576.

The previous prime is 3642721. The next prime is 3642731. The reversal of 3642730 is 372463.

It is a Smith number, since the sum of its digits (25) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 3642695 and 3642704.

It is not an unprimeable number, because it can be changed into a prime (3642731) 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, 1092 + ... + 2911.

It is an arithmetic number, because the mean of its divisors is an integer number (252252).

Almost surely, 2^3642730 is an apocalyptic number.

3642730 is an abundant number, since it is smaller than the sum of its proper divisors (4429334).

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

3642730 is a wasteful number, since it uses less digits than its factorization.

3642730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4030.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 3642730 is about 1908.5937231375. The cubic root of 3642730 is about 153.8658808678.

The spelling of 3642730 in words is "three million, six hundred forty-two thousand, seven hundred thirty".