42036245 has 4 divisors (see below), whose sum is σ = 50443500. Its totient is φ = 33628992.

The previous prime is 42036221. The next prime is 42036271. The reversal of 42036245 is 54263024.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18861649 + 23174596 = 4343^2 + 4814^2 .

It is a cyclic number.

It is not a de Polignac number, because 42036245 - 2⁸ = 42035989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4203620 + ... + 4203629.

It is an arithmetic number, because the mean of its divisors is an integer number (12610875).

Almost surely, 2^42036245 is an apocalyptic number.

It is an amenable number.

42036245 is a deficient number, since it is larger than the sum of its proper divisors (8407255).

42036245 is an equidigital number, since it uses as much as digits as its factorization.

42036245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8407254.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 42036245 is about 6483.5364578292. The cubic root of 42036245 is about 347.7026266802.

Adding to 42036245 its reverse (54263024), we get a palindrome (96299269).

The spelling of 42036245 in words is "forty-two million, thirty-six thousand, two hundred forty-five".