42945763 has 8 divisors (see below), whose sum is σ = 49516128. Its totient is φ = 36484224.

The previous prime is 42945751. The next prime is 42945767. The reversal of 42945763 is 36754924.

It is a happy number.

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

It is not a de Polignac number, because 42945763 - 2⁵ = 42945731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42945767) 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, 26356 + ... + 27937.

It is an arithmetic number, because the mean of its divisors is an integer number (6189516).

Almost surely, 2^42945763 is an apocalyptic number.

42945763 is a deficient number, since it is larger than the sum of its proper divisors (6570365).

42945763 is a wasteful number, since it uses less digits than its factorization.

42945763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54413.

The product of its digits is 181440, while the sum is 40.

The square root of 42945763 is about 6553.3016869361. The cubic root of 42945763 is about 350.1924465454.

The spelling of 42945763 in words is "forty-two million, nine hundred forty-five thousand, seven hundred sixty-three".