109011240 has 96 divisors (see below), whose sum is σ = 381555720. Its totient is φ = 26832384.

The previous prime is 109011239. The next prime is 109011241. The reversal of 109011240 is 42110901.

It is an interprime number because it is at equal distance from previous prime (109011239) and next prime (109011241).

It can be written as a sum of positive squares in 4 ways, for example, as 35497764 + 73513476 = 5958^2 + 8574^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (109011241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6967 + ... + 16326.

Almost surely, 2^109011240 is an apocalyptic number.

109011240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109011240 is an abundant number, since it is smaller than the sum of its proper divisors (272544480).

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

109011240 is a wasteful number, since it uses less digits than its factorization.

109011240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23323 (or 23316 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 109011240 is about 10440.8447934063. The cubic root of 109011240 is about 477.7020370693.

The spelling of 109011240 in words is "one hundred nine million, eleven thousand, two hundred forty".