3642261 has 16 divisors (see below), whose sum is σ = 5580288. Its totient is φ = 2070000.

The previous prime is 3642251. The next prime is 3642269. The reversal of 3642261 is 1622463.

It is not a de Polignac number, because 3642261 - 2¹⁰ = 3641237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3642269) 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, 4926 + ... + 5616.

It is an arithmetic number, because the mean of its divisors is an integer number (348768).

Almost surely, 2^3642261 is an apocalyptic number.

It is an amenable number.

3642261 is a deficient number, since it is larger than the sum of its proper divisors (1938027).

3642261 is a wasteful number, since it uses less digits than its factorization.

3642261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952.

The product of its digits is 1728, while the sum is 24.

The square root of 3642261 is about 1908.4708538513. The cubic root of 3642261 is about 153.8592771946.

The spelling of 3642261 in words is "three million, six hundred forty-two thousand, two hundred sixty-one".