109471440 has 120 divisors (see below), whose sum is σ = 367610400. Its totient is φ = 26936832.

The previous prime is 109471429. The next prime is 109471469. The reversal of 109471440 is 44174901.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 109471398 and 109471407.

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, 39211 + ... + 41909.

It is an arithmetic number, because the mean of its divisors is an integer number (3063420).

Almost surely, 2^109471440 is an apocalyptic number.

109471440 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 109471440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183805200).

109471440 is an abundant number, since it is smaller than the sum of its proper divisors (258138960).

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

109471440 is a wasteful number, since it uses less digits than its factorization.

109471440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741 (or 2722 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 109471440 is about 10462.8600296477. The cubic root of 109471440 is about 478.3733129411.

The spelling of 109471440 in words is "one hundred nine million, four hundred seventy-one thousand, four hundred forty".