3642012 has 72 divisors (see below), whose sum is σ = 10653552. Its totient is φ = 1036800.

The previous prime is 3641999. The next prime is 3642019. The reversal of 3642012 is 2102463.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3642019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6462 + ... + 7002.

It is an arithmetic number, because the mean of its divisors is an integer number (147966).

Almost surely, 2^3642012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3642012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5326776).

3642012 is an abundant number, since it is smaller than the sum of its proper divisors (7011540).

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

3642012 is a wasteful number, since it uses less digits than its factorization.

3642012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579 (or 574 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 3642012 is about 1908.4056172627. The cubic root of 3642012 is about 153.8557709629.

Adding to 3642012 its reverse (2102463), we get a palindrome (5744475).

The spelling of 3642012 in words is "three million, six hundred forty-two thousand, twelve".