34607820 has 72 divisors (see below), whose sum is σ = 104960016. Its totient is φ = 8516352.

The previous prime is 34607809. The next prime is 34607821. The reversal of 34607820 is 2870643.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (34607821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8434 + ... + 11846.

It is an arithmetic number, because the mean of its divisors is an integer number (1457778).

Almost surely, 2^34607820 is an apocalyptic number.

34607820 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34607820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52480008).

34607820 is an abundant number, since it is smaller than the sum of its proper divisors (70352196).

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

34607820 is a wasteful number, since it uses less digits than its factorization.

34607820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3451 (or 3436 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 34607820 is about 5882.8411503286. The cubic root of 34607820 is about 325.8802802270.

The spelling of 34607820 in words is "thirty-four million, six hundred seven thousand, eight hundred twenty".