42434042320 has 40 divisors (see below), whose sum is σ = 99368952480. Its totient is φ = 16851500160.

The previous prime is 42434042317. The next prime is 42434042423. The reversal of 42434042320 is 2324043424.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1896886 + ... + 1919125.

It is an arithmetic number, because the mean of its divisors is an integer number (2484223812).

Almost surely, 2^42434042320 is an apocalyptic number.

42434042320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42434042320 is an abundant number, since it is smaller than the sum of its proper divisors (56934910160).

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

42434042320 is a wasteful number, since it uses less digits than its factorization.

42434042320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3816163 (or 3816157 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 42434042320 its reverse (2324043424), we get a palindrome (44758085744).

The spelling of 42434042320 in words is "forty-two billion, four hundred thirty-four million, forty-two thousand, three hundred twenty".