109407820 has 12 divisors (see below), whose sum is σ = 229756464. Its totient is φ = 43763120.

The previous prime is 109407799. The next prime is 109407829. The reversal of 109407820 is 28704901.

It is not an unprimeable number, because it can be changed into a prime (109407829) 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 3 ways as a sum of consecutive naturals, for example, 2735176 + ... + 2735215.

It is an arithmetic number, because the mean of its divisors is an integer number (19146372).

Almost surely, 2^109407820 is an apocalyptic number.

109407820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109407820 is an abundant number, since it is smaller than the sum of its proper divisors (120348644).

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

109407820 is a wasteful number, since it uses less digits than its factorization.

109407820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5470400 (or 5470398 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 109407820 is about 10459.8193101028. The cubic root of 109407820 is about 478.2806251200.

The spelling of 109407820 in words is "one hundred nine million, four hundred seven thousand, eight hundred twenty".