42945265 has 8 divisors (see below), whose sum is σ = 56219328. Its totient is φ = 31232880.

The previous prime is 42945251. The next prime is 42945277. The reversal of 42945265 is 56254924.

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

It is not a de Polignac number, because 42945265 - 2⁵ = 42945233 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390357 + ... + 390466.

It is an arithmetic number, because the mean of its divisors is an integer number (7027416).

Almost surely, 2^42945265 is an apocalyptic number.

It is an amenable number.

42945265 is a deficient number, since it is larger than the sum of its proper divisors (13274063).

42945265 is a wasteful number, since it uses less digits than its factorization.

42945265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780839.

The product of its digits is 86400, while the sum is 37.

The square root of 42945265 is about 6553.2636907117. The cubic root of 42945265 is about 350.1910929270.

It can be divided in two parts, 4294 and 5265, that added together give a palindrome (9559).

The spelling of 42945265 in words is "forty-two million, nine hundred forty-five thousand, two hundred sixty-five".