34491220 has 24 divisors (see below), whose sum is σ = 74769408. Its totient is φ = 13351200.

The previous prime is 34491217. The next prime is 34491227. The reversal of 34491220 is 2219443.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34491227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27196 + ... + 28435.

It is an arithmetic number, because the mean of its divisors is an integer number (3115392).

Almost surely, 2^34491220 is an apocalyptic number.

It is an amenable number.

34491220 is an abundant number, since it is smaller than the sum of its proper divisors (40278188).

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

34491220 is a wasteful number, since it uses less digits than its factorization.

34491220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55671 (or 55669 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 34491220 is about 5872.9226114431. The cubic root of 34491220 is about 325.5138852487.

The spelling of 34491220 in words is "thirty-four million, four hundred ninety-one thousand, two hundred twenty".