3642426 has 12 divisors (see below), whose sum is σ = 7891962. Its totient is φ = 1214136.

The previous prime is 3642377. The next prime is 3642427. The reversal of 3642426 is 6242463.

It can be written as a sum of positive squares in only one way, i.e., 3426201 + 216225 = 1851^2 + 465^2 .

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3642426.

It is not an unprimeable number, because it can be changed into a prime (3642427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 101161 + ... + 101196.

Almost surely, 2^3642426 is an apocalyptic number.

3642426 is an abundant number, since it is smaller than the sum of its proper divisors (4249536).

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

3642426 is a wasteful number, since it uses less digits than its factorization.

3642426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202365 (or 202362 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 3642426 is about 1908.5140816876. The cubic root of 3642426 is about 153.8616005132.

Adding to 3642426 its reverse (6242463), we get a palindrome (9884889).

The spelling of 3642426 in words is "three million, six hundred forty-two thousand, four hundred twenty-six".