34155020 has 24 divisors (see below), whose sum is σ = 72172464. Its totient is φ = 13576896.

The previous prime is 34155019. The next prime is 34155031. The reversal of 34155020 is 2055143.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 34154983 and 34155001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1979 + ... + 8498.

It is an arithmetic number, because the mean of its divisors is an integer number (3007186).

Almost surely, 2^34155020 is an apocalyptic number.

It is an amenable number.

34155020 is an abundant number, since it is smaller than the sum of its proper divisors (38017444).

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

34155020 is a wasteful number, since it uses less digits than its factorization.

34155020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10649 (or 10647 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 34155020 is about 5844.2296327232. The cubic root of 34155020 is about 324.4527912026.

The spelling of 34155020 in words is "thirty-four million, one hundred fifty-five thousand, twenty".