109720434 has 16 divisors (see below), whose sum is σ = 224544672. Its totient is φ = 35722848.

The previous prime is 109720433. The next prime is 109720451. The reversal of 109720434 is 434027901.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (109720433) 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, 212379 + ... + 212894.

It is an arithmetic number, because the mean of its divisors is an integer number (14034042).

Almost surely, 2^109720434 is an apocalyptic number.

109720434 is an abundant number, since it is smaller than the sum of its proper divisors (114824238).

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

109720434 is a wasteful number, since it uses less digits than its factorization.

109720434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425321.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 109720434 is about 10474.7522166398. The cubic root of 109720434 is about 478.7357267706.

The spelling of 109720434 in words is "one hundred nine million, seven hundred twenty thousand, four hundred thirty-four".