42201813 has 8 divisors (see below), whose sum is σ = 57191776. Its totient is φ = 27673200.

The previous prime is 42201799. The next prime is 42201821. The reversal of 42201813 is 31810224.

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

It is not a de Polignac number, because 42201813 - 2⁶ = 42201749 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42201813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42201853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115123 + ... + 115488.

It is an arithmetic number, because the mean of its divisors is an integer number (7148972).

Almost surely, 2^42201813 is an apocalyptic number.

It is an amenable number.

42201813 is a deficient number, since it is larger than the sum of its proper divisors (14989963).

42201813 is a wasteful number, since it uses less digits than its factorization.

42201813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230675.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 42201813 is about 6496.2922501993. The cubic root of 42201813 is about 348.1585269946.

The spelling of 42201813 in words is "forty-two million, two hundred one thousand, eight hundred thirteen".