34420420040 has 32 divisors (see below), whose sum is σ = 79334874360. Its totient is φ = 13432358400.

The previous prime is 34420420003. The next prime is 34420420043. The reversal of 34420420040 is 4002402443.

It can be written as a sum of positive squares in 4 ways, for example, as 30059930884 + 4360489156 = 173378^2 + 66034^2 .

It is a junction number, because it is equal to n+sod(n) for n = 34420419988 and 34420420015.

It is not an unprimeable number, because it can be changed into a prime (34420420043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10492391 + ... + 10495670.

Almost surely, 2^34420420040 is an apocalyptic number.

It is an amenable number.

34420420040 is an abundant number, since it is smaller than the sum of its proper divisors (44914454320).

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

34420420040 is a wasteful number, since it uses less digits than its factorization.

34420420040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20988113 (or 20988109 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

Adding to 34420420040 its reverse (4002402443), we get a palindrome (38422822483).

The spelling of 34420420040 in words is "thirty-four billion, four hundred twenty million, four hundred twenty thousand, forty".