34207420 has 48 divisors (see below), whose sum is σ = 77968800. Its totient is φ = 12531456.

The previous prime is 34207409. The next prime is 34207421. The reversal of 34207420 is 2470243.

It is a junction number, because it is equal to n+sod(n) for n = 34207391 and 34207400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34207421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38299 + ... + 39181.

It is an arithmetic number, because the mean of its divisors is an integer number (1624350).

Almost surely, 2^34207420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34207420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38984400).

34207420 is an abundant number, since it is smaller than the sum of its proper divisors (43761380).

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

34207420 is a wasteful number, since it uses less digits than its factorization.

34207420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054 (or 1052 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 34207420 is about 5848.7109690940. The cubic root of 34207420 is about 324.6186295800.

Adding to 34207420 its reverse (2470243), we get a palindrome (36677663).

The spelling of 34207420 in words is "thirty-four million, two hundred seven thousand, four hundred twenty".