109861240 has 32 divisors (see below), whose sum is σ = 250883280. Its totient is φ = 43287552.

The previous prime is 109861237. The next prime is 109861261. The reversal of 109861240 is 42168901.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 17817 + ... + 23176.

Almost surely, 2^109861240 is an apocalyptic number.

109861240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109861240 is an abundant number, since it is smaller than the sum of its proper divisors (141022040).

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

109861240 is a wasteful number, since it uses less digits than its factorization.

109861240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41071 (or 41067 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 109861240 is about 10481.4712707711. The cubic root of 109861240 is about 478.9404289857.

The spelling of 109861240 in words is "one hundred nine million, eight hundred sixty-one thousand, two hundred forty".