42203617 has 16 divisors (see below), whose sum is σ = 46489600. Its totient is φ = 38160720.

The previous prime is 42203599. The next prime is 42203627. The reversal of 42203617 is 71630224.

It is a cyclic number.

It is not a de Polignac number, because 42203617 - 2²³ = 33815009 is a prime.

It is a super-2 number, since 2×42203617² = 3562290575765378, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42203591 and 42203600.

It is not an unprimeable number, because it can be changed into a prime (42203627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46078 + ... + 46984.

It is an arithmetic number, because the mean of its divisors is an integer number (2905600).

Almost surely, 2^42203617 is an apocalyptic number.

It is an amenable number.

42203617 is a deficient number, since it is larger than the sum of its proper divisors (4285983).

42203617 is a wasteful number, since it uses less digits than its factorization.

42203617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 42203617 is about 6496.4310971486. The cubic root of 42203617 is about 348.1634878323.

The spelling of 42203617 in words is "forty-two million, two hundred three thousand, six hundred seventeen".