109212480 has 168 divisors, whose sum is σ = 404679912. Its totient is φ = 26873856.

The previous prime is 109212461. The next prime is 109212491. The reversal of 109212480 is 84212901.

It can be written as a sum of positive squares in 4 ways, for example, as 25160256 + 84052224 = 5016^2 + 9168^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35982 + ... + 38898.

It is an arithmetic number, because the mean of its divisors is an integer number (2408809).

Almost surely, 2^109212480 is an apocalyptic number.

109212480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109212480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202339956).

109212480 is an abundant number, since it is smaller than the sum of its proper divisors (295467432).

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

109212480 is a wasteful number, since it uses less digits than its factorization.

109212480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2953 (or 2940 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 109212480 is about 10450.4775010523. The cubic root of 109212480 is about 477.9958100273.

The spelling of 109212480 in words is "one hundred nine million, two hundred twelve thousand, four hundred eighty".