109408572 has 162 divisors, whose sum is σ = 349313328. Its totient is φ = 28776384.

The previous prime is 109408571. The next prime is 109408573. The reversal of 109408572 is 275804901.

It is an interprime number because it is at equal distance from previous prime (109408571) and next prime (109408573).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109408571) 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 53 ways as a sum of consecutive naturals, for example, 297933 + ... + 298299.

Almost surely, 2^109408572 is an apocalyptic number.

109408572 is a gapful number since it is divisible by the number (12) 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 109408572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174656664).

109408572 is an abundant number, since it is smaller than the sum of its proper divisors (239904756).

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

109408572 is a wasteful number, since it uses less digits than its factorization.

109408572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 109408572 is about 10459.8552571247. The cubic root of 109408572 is about 478.2817209168.

The spelling of 109408572 in words is "one hundred nine million, four hundred eight thousand, five hundred seventy-two".