109247490 has 96 divisors (see below), whose sum is σ = 312227136. Its totient is φ = 26282880.

The previous prime is 109247483. The next prime is 109247497. The reversal of 109247490 is 94742901.

109247490 = 38² + 39² + ... + 689².

109247490 is a `hidden beast` number, since 10 + 92 + 474 + 90 = 666.

It is an interprime number because it is at equal distance from previous prime (109247483) and next prime (109247497).

It is not an unprimeable number, because it can be changed into a prime (109247497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 161032 + ... + 161708.

It is an arithmetic number, because the mean of its divisors is an integer number (3252366).

Almost surely, 2^109247490 is an apocalyptic number.

109247490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 109247490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156113568).

109247490 is an abundant number, since it is smaller than the sum of its proper divisors (202979646).

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

109247490 is a wasteful number, since it uses less digits than its factorization.

109247490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864 (or 861 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 109247490 is about 10452.1524099106. The cubic root of 109247490 is about 478.0468812523.

The spelling of 109247490 in words is "one hundred nine million, two hundred forty-seven thousand, four hundred ninety".