42420322034 has 4 divisors (see below), whose sum is σ = 63630483054. Its totient is φ = 21210161016.

The previous prime is 42420321997. The next prime is 42420322039. The reversal of 42420322034 is 43022302424.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 31576223809 + 10844098225 = 177697^2 + 104135^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42420321994 and 42420322012.

It is not an unprimeable number, because it can be changed into a prime (42420322039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10605080507 + ... + 10605080510.

Almost surely, 2^42420322034 is an apocalyptic number.

42420322034 is a deficient number, since it is larger than the sum of its proper divisors (21210161020).

42420322034 is a wasteful number, since it uses less digits than its factorization.

42420322034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21210161019.

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 42420322034 its reverse (43022302424), we get a palindrome (85442624458).

The spelling of 42420322034 in words is "forty-two billion, four hundred twenty million, three hundred twenty-two thousand, thirty-four".