34123820 has 12 divisors (see below), whose sum is σ = 71660064. Its totient is φ = 13649520.

The previous prime is 34123819. The next prime is 34123861. The reversal of 34123820 is 2832143.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 853076 + ... + 853115.

It is an arithmetic number, because the mean of its divisors is an integer number (5971672).

Almost surely, 2^34123820 is an apocalyptic number.

It is an amenable number.

34123820 is an abundant number, since it is smaller than the sum of its proper divisors (37536244).

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

34123820 is a wasteful number, since it uses less digits than its factorization.

34123820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1706200 (or 1706198 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 34123820 is about 5841.5597232246. The cubic root of 34123820 is about 324.3539671642.

Adding to 34123820 its reverse (2832143), we get a palindrome (36955963).

It can be divided in two parts, 34123 and 820, that added together give a palindrome (34943).

The spelling of 34123820 in words is "thirty-four million, one hundred twenty-three thousand, eight hundred twenty".