34621420 has 48 divisors (see below), whose sum is σ = 79027200. Its totient is φ = 12692160.

The previous prime is 34621409. The next prime is 34621421. The reversal of 34621420 is 2412643.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 34621391 and 34621400.

It is not an unprimeable number, because it can be changed into a prime (34621421) 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 15 ways as a sum of consecutive naturals, for example, 10311 + ... + 13249.

It is an arithmetic number, because the mean of its divisors is an integer number (1646400).

Almost surely, 2^34621420 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 34621420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39513600).

34621420 is an abundant number, since it is smaller than the sum of its proper divisors (44405780).

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

34621420 is a wasteful number, since it uses less digits than its factorization.

34621420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2998 (or 2996 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 34621420 is about 5883.9969408558. The cubic root of 34621420 is about 325.9229622122.

The spelling of 34621420 in words is "thirty-four million, six hundred twenty-one thousand, four hundred twenty".