42940103 has 4 divisors (see below), whose sum is σ = 44807088. Its totient is φ = 41073120.

The previous prime is 42940069. The next prime is 42940109. The reversal of 42940103 is 30104924.

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 42940103 - 2¹² = 42936007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 1866961 = 42940103 / (4 + 2 + 9 + 4 + 0 + 1 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42940109) 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, 933458 + ... + 933503.

It is an arithmetic number, because the mean of its divisors is an integer number (11201772).

Almost surely, 2^42940103 is an apocalyptic number.

42940103 is a deficient number, since it is larger than the sum of its proper divisors (1866985).

42940103 is a wasteful number, since it uses less digits than its factorization.

42940103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1866984.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 42940103 is about 6552.8698293191. The cubic root of 42940103 is about 350.1770614317.

The spelling of 42940103 in words is "forty-two million, nine hundred forty thousand, one hundred three".