3618442 has 4 divisors (see below), whose sum is σ = 5427666. Its totient is φ = 1809220.

The previous prime is 3618421. The next prime is 3618443. The reversal of 3618442 is 2448163.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1846881 + 1771561 = 1359^2 + 1331^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3618442.

It is not an unprimeable number, because it can be changed into a prime (3618443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 904609 + ... + 904612.

Almost surely, 2^3618442 is an apocalyptic number.

3618442 is a deficient number, since it is larger than the sum of its proper divisors (1809224).

3618442 is a wasteful number, since it uses less digits than its factorization.

3618442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809223.

The product of its digits is 4608, while the sum is 28.

The square root of 3618442 is about 1902.2202816709. The cubic root of 3618442 is about 153.5231497162.

The spelling of 3618442 in words is "three million, six hundred eighteen thousand, four hundred forty-two".