108429720 has 64 divisors (see below), whose sum is σ = 371761920. Its totient is φ = 24783744.

The previous prime is 108429701. The next prime is 108429731. The reversal of 108429720 is 27924801.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63702 + ... + 65381.

It is an arithmetic number, because the mean of its divisors is an integer number (5808780).

Almost surely, 2^108429720 is an apocalyptic number.

108429720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108429720 is an abundant number, since it is smaller than the sum of its proper divisors (263332200).

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

108429720 is a wasteful number, since it uses less digits than its factorization.

108429720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129104 (or 129100 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 108429720 is about 10412.9592335704. The cubic root of 108429720 is about 476.8510889771.

The spelling of 108429720 in words is "one hundred eight million, four hundred twenty-nine thousand, seven hundred twenty".