42423431430 has 16 divisors (see below), whose sum is σ = 101816235504. Its totient is φ = 11312915040.

The previous prime is 42423431389. The next prime is 42423431489. The reversal of 42423431430 is 3413432424.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1414114381 = 42423431430 / (4 + 2 + 4 + 2 + 3 + 4 + 3 + 1 + 4 + 3 + 0).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 707057161 + ... + 707057220.

It is an arithmetic number, because the mean of its divisors is an integer number (6363514719).

Almost surely, 2^42423431430 is an apocalyptic number.

42423431430 is an abundant number, since it is smaller than the sum of its proper divisors (59392804074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42423431430 is a wasteful number, since it uses less digits than its factorization.

42423431430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414114391.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 42423431430 its reverse (3413432424), we get a palindrome (45836863854).

The spelling of 42423431430 in words is "forty-two billion, four hundred twenty-three million, four hundred thirty-one thousand, four hundred thirty".