109190040 has 32 divisors (see below), whose sum is σ = 327570480. Its totient is φ = 29117312.

The previous prime is 109190033. The next prime is 109190041. The reversal of 109190040 is 40091901.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109190041) 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 7 ways as a sum of consecutive naturals, for example, 454839 + ... + 455078.

Almost surely, 2^109190040 is an apocalyptic number.

109190040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109190040 is an abundant number, since it is smaller than the sum of its proper divisors (218380440).

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

109190040 is a wasteful number, since it uses less digits than its factorization.

109190040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909931 (or 909927 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 109190040 is about 10449.4038107444. The cubic root of 109190040 is about 477.9630696887.

The spelling of 109190040 in words is "one hundred nine million, one hundred ninety thousand, forty".