42024945 has 16 divisors (see below), whose sum is σ = 67462272. Its totient is φ = 22339200.

The previous prime is 42024937. The next prime is 42024947. The reversal of 42024945 is 54942024.

It is not a de Polignac number, because 42024945 - 2³ = 42024937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42024947) 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, 220 + ... + 9170.

It is an arithmetic number, because the mean of its divisors is an integer number (4216392).

Almost surely, 2^42024945 is an apocalyptic number.

It is an amenable number.

42024945 is a deficient number, since it is larger than the sum of its proper divisors (25437327).

42024945 is a wasteful number, since it uses less digits than its factorization.

42024945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9272.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 42024945 is about 6482.6649612640. The cubic root of 42024945 is about 347.6714679203.

Adding to 42024945 its reverse (54942024), we get a palindrome (96966969).

The spelling of 42024945 in words is "forty-two million, twenty-four thousand, nine hundred forty-five".