3645442 has 8 divisors (see below), whose sum is σ = 5504832. Its totient is φ = 1810500.

The previous prime is 3645419. The next prime is 3645449. The reversal of 3645442 is 2445463.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 3645442.

It is not an unprimeable number, because it can be changed into a prime (3645449) 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, 5734 + ... + 6337.

It is an arithmetic number, because the mean of its divisors is an integer number (688104).

Almost surely, 2^3645442 is an apocalyptic number.

3645442 is a deficient number, since it is larger than the sum of its proper divisors (1859390).

3645442 is a wasteful number, since it uses less digits than its factorization.

3645442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12224.

The product of its digits is 11520, while the sum is 28.

The square root of 3645442 is about 1909.3040616937. The cubic root of 3645442 is about 153.9040556027.

The spelling of 3645442 in words is "three million, six hundred forty-five thousand, four hundred forty-two".