42400739203 has 4 divisors (see below), whose sum is σ = 42406211680. Its totient is φ = 42395266728.

The previous prime is 42400739179. The next prime is 42400739233. The reversal of 42400739203 is 30293700424.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42400739203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42400739233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2724600 + ... + 2740117.

It is an arithmetic number, because the mean of its divisors is an integer number (10601552920).

Almost surely, 2^42400739203 is an apocalyptic number.

42400739203 is a deficient number, since it is larger than the sum of its proper divisors (5472477).

42400739203 is an equidigital number, since it uses as much as digits as its factorization.

42400739203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5472476.

The product of its (nonzero) digits is 36288, while the sum is 34.

The spelling of 42400739203 in words is "forty-two billion, four hundred million, seven hundred thirty-nine thousand, two hundred three".