34920172 has 24 divisors (see below), whose sum is σ = 70058016. Its totient is φ = 14919168.

The previous prime is 34920113. The next prime is 34920173. The reversal of 34920172 is 27102943.

34920172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 34920172.

It is not an unprimeable number, because it can be changed into a prime (34920173) 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, 8118 + ... + 11650.

It is an arithmetic number, because the mean of its divisors is an integer number (2919084).

Almost surely, 2^34920172 is an apocalyptic number.

It is an amenable number.

34920172 is an abundant number, since it is smaller than the sum of its proper divisors (35137844).

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

34920172 is a wasteful number, since it uses less digits than its factorization.

34920172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3897 (or 3895 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 34920172 is about 5909.3292343548. The cubic root of 34920172 is about 326.8577534415.

The spelling of 34920172 in words is "thirty-four million, nine hundred twenty thousand, one hundred seventy-two".