42245013 has 8 divisors (see below), whose sum is σ = 57040000. Its totient is φ = 27806688.

The previous prime is 42244987. The next prime is 42245023. The reversal of 42245013 is 31054224.

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

It is not a de Polignac number, because 42245013 - 2⁵ = 42244981 is a prime.

It is a super-2 number, since 2×42245013² = 3569282246740338, which 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 (42245023) 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, 88888 + ... + 89361.

It is an arithmetic number, because the mean of its divisors is an integer number (7130000).

Almost surely, 2^42245013 is an apocalyptic number.

It is an amenable number.

42245013 is a deficient number, since it is larger than the sum of its proper divisors (14794987).

42245013 is a wasteful number, since it uses less digits than its factorization.

42245013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178331.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 42245013 is about 6499.6163732947. The cubic root of 42245013 is about 348.2772842876.

Adding to 42245013 its reverse (31054224), we get a palindrome (73299237).

The spelling of 42245013 in words is "forty-two million, two hundred forty-five thousand, thirteen".