3425420420 has 72 divisors (see below), whose sum is σ = 7416319680. Its totient is φ = 1328927040.

The previous prime is 3425420419. The next prime is 3425420431. The reversal of 3425420420 is 240245243.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3425420420.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7802561 + ... + 7802999.

It is an arithmetic number, because the mean of its divisors is an integer number (103004440).

Almost surely, 2^3425420420 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 3425420420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3708159840).

3425420420 is an abundant number, since it is smaller than the sum of its proper divisors (3990899260).

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

3425420420 is a wasteful number, since it uses less digits than its factorization.

3425420420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745 (or 700 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 3425420420 is about 58527.0913338430. The cubic root of 3425420420 is about 1507.4328000062.

Adding to 3425420420 its reverse (240245243), we get a palindrome (3665665663).

The spelling of 3425420420 in words is "three billion, four hundred twenty-five million, four hundred twenty thousand, four hundred twenty".