42203400245 has 8 divisors (see below), whose sum is σ = 50663014584. Its totient is φ = 33750097344.

The previous prime is 42203400241. The next prime is 42203400293. The reversal of 42203400245 is 54200430224.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4627128529 + 37576271716 = 68023^2 + 193846^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 42203400245 - 2² = 42203400241 is a prime.

It is a super-2 number, since 2×42203400245² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42203400241) 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, 1563134 + ... + 1589903.

It is an arithmetic number, because the mean of its divisors is an integer number (6332876823).

Almost surely, 2^42203400245 is an apocalyptic number.

It is an amenable number.

42203400245 is a deficient number, since it is larger than the sum of its proper divisors (8459614339).

42203400245 is a wasteful number, since it uses less digits than its factorization.

42203400245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3155719.

The product of its (nonzero) digits is 7680, while the sum is 26.

Adding to 42203400245 its reverse (54200430224), we get a palindrome (96403830469).

The spelling of 42203400245 in words is "forty-two billion, two hundred three million, four hundred thousand, two hundred forty-five".