34421020 has 24 divisors (see below), whose sum is σ = 72450000. Its totient is φ = 13736832.

The previous prime is 34420993. The next prime is 34421029. The reversal of 34421020 is 2012443.

It is a junction number, because it is equal to n+sod(n) for n = 34420985 and 34421003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34421029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8256 + ... + 11704.

It is an arithmetic number, because the mean of its divisors is an integer number (3018750).

Almost surely, 2^34421020 is an apocalyptic number.

It is an amenable number.

34421020 is an abundant number, since it is smaller than the sum of its proper divisors (38028980).

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

34421020 is a wasteful number, since it uses less digits than its factorization.

34421020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3957 (or 3955 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 34421020 is about 5866.9429859169. The cubic root of 34421020 is about 325.2928957212.

Adding to 34421020 its reverse (2012443), we get a palindrome (36433463).

The spelling of 34421020 in words is "thirty-four million, four hundred twenty-one thousand, twenty".