42144202 has 4 divisors (see below), whose sum is σ = 63216306. Its totient is φ = 21072100.

The previous prime is 42144161. The next prime is 42144217. The reversal of 42144202 is 20244124.

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., 41486481 + 657721 = 6441^2 + 811^2 .

It is a super-5 number, since 5×42144202⁵ (a number of 39 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 42144202.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10536049 + ... + 10536052.

Almost surely, 2^42144202 is an apocalyptic number.

42144202 is a deficient number, since it is larger than the sum of its proper divisors (21072104).

42144202 is a wasteful number, since it uses less digits than its factorization.

42144202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21072103.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 42144202 is about 6491.8565911456. The cubic root of 42144202 is about 348.0000275245. Note that the first 4 decimals are identical.

Adding to 42144202 its reverse (20244124), we get a palindrome (62388326).

The spelling of 42144202 in words is "forty-two million, one hundred forty-four thousand, two hundred two".