42945795 has 40 divisors (see below), whose sum is σ = 81050640. Its totient is φ = 21695040.

The previous prime is 42945767. The next prime is 42945797. The reversal of 42945795 is 59754924.

It is not a de Polignac number, because 42945795 - 2⁶ = 42945731 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 42945795.

It is not an unprimeable number, because it can be changed into a prime (42945797) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4905 + ... + 10485.

It is an arithmetic number, because the mean of its divisors is an integer number (2026266).

Almost surely, 2^42945795 is an apocalyptic number.

42945795 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42945795 is a deficient number, since it is larger than the sum of its proper divisors (38104845).

42945795 is a wasteful number, since it uses less digits than its factorization.

42945795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5617 (or 5608 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 42945795 is about 6553.3041284531. The cubic root of 42945795 is about 350.1925335245.

The spelling of 42945795 in words is "forty-two million, nine hundred forty-five thousand, seven hundred ninety-five".