42744803 has 4 divisors (see below), whose sum is σ = 42788928. Its totient is φ = 42700680.

The previous prime is 42744799. The next prime is 42744827. The reversal of 42744803 is 30844724.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42744803 - 2² = 42744799 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42744803.

It is not an unprimeable number, because it can be changed into a prime (42744853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20576 + ... + 22557.

It is an arithmetic number, because the mean of its divisors is an integer number (10697232).

Almost surely, 2^42744803 is an apocalyptic number.

42744803 is a deficient number, since it is larger than the sum of its proper divisors (44125).

42744803 is an equidigital number, since it uses as much as digits as its factorization.

42744803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44124.

The product of its (nonzero) digits is 21504, while the sum is 32.

The square root of 42744803 is about 6537.9509787088. The cubic root of 42744803 is about 349.6453632354.

The spelling of 42744803 in words is "forty-two million, seven hundred forty-four thousand, eight hundred three".