3642428 has 12 divisors (see below), whose sum is σ = 6546792. Its totient is φ = 1771920.

The previous prime is 3642427. The next prime is 3642449. The reversal of 3642428 is 8242463.

3642428 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 3642428.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 12158 + ... + 12453.

It is an arithmetic number, because the mean of its divisors is an integer number (545566).

Almost surely, 2^3642428 is an apocalyptic number.

It is an amenable number.

3642428 is a deficient number, since it is larger than the sum of its proper divisors (2904364).

3642428 is a wasteful number, since it uses less digits than its factorization.

3642428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24652 (or 24650 counting only the distinct ones).

The product of its digits is 9216, while the sum is 29.

The square root of 3642428 is about 1908.5146056554. The cubic root of 3642428 is about 153.8616286742.

The spelling of 3642428 in words is "three million, six hundred forty-two thousand, four hundred twenty-eight".