34579820 has 24 divisors (see below), whose sum is σ = 79219728. Its totient is φ = 12574400.

The previous prime is 34579807. The next prime is 34579823. The reversal of 34579820 is 2897543.

34579820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34579823) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 78371 + ... + 78810.

It is an arithmetic number, because the mean of its divisors is an integer number (3300822).

Almost surely, 2^34579820 is an apocalyptic number.

It is an amenable number.

34579820 is an abundant number, since it is smaller than the sum of its proper divisors (44639908).

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

34579820 is a wasteful number, since it uses less digits than its factorization.

34579820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157201 (or 157199 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 34579820 is about 5880.4608662927. The cubic root of 34579820 is about 325.7923703291.

The spelling of 34579820 in words is "thirty-four million, five hundred seventy-nine thousand, eight hundred twenty".