34215020 has 24 divisors (see below), whose sum is σ = 82116384. Its totient is φ = 11730816.

The previous prime is 34215017. The next prime is 34215023. The reversal of 34215020 is 2051243.

It is an interprime number because it is at equal distance from previous prime (34215017) and next prime (34215023).

It is a self number, because there is not a number n which added to its sum of digits gives 34215020.

It is not an unprimeable number, because it can be changed into a prime (34215023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122057 + ... + 122336.

It is an arithmetic number, because the mean of its divisors is an integer number (3421516).

Almost surely, 2^34215020 is an apocalyptic number.

It is an amenable number.

34215020 is an abundant number, since it is smaller than the sum of its proper divisors (47901364).

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

34215020 is a wasteful number, since it uses less digits than its factorization.

34215020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244409 (or 244407 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 34215020 is about 5849.3606488231. The cubic root of 34215020 is about 324.6426684084.

Adding to 34215020 its reverse (2051243), we get a palindrome (36266263).

The spelling of 34215020 in words is "thirty-four million, two hundred fifteen thousand, twenty".