34720620 has 96 divisors (see below), whose sum is σ = 109541376. Its totient is φ = 8140800.

The previous prime is 34720607. The next prime is 34720661. The reversal of 34720620 is 2602743.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19612 + ... + 21308.

It is an arithmetic number, because the mean of its divisors is an integer number (1141056).

Almost surely, 2^34720620 is an apocalyptic number.

34720620 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 34720620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54770688).

34720620 is an abundant number, since it is smaller than the sum of its proper divisors (74820756).

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

34720620 is a wasteful number, since it uses less digits than its factorization.

34720620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751 (or 1749 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 34720620 is about 5892.4205552557. The cubic root of 34720620 is about 326.2339520299.

The spelling of 34720620 in words is "thirty-four million, seven hundred twenty thousand, six hundred twenty".