109426869 has 20 divisors (see below), whose sum is σ = 168741760. Its totient is φ = 70596360.

The previous prime is 109426861. The next prime is 109426897. The reversal of 109426869 is 968624901.

It is a happy number.

It is not a de Polignac number, because 109426869 - 2³ = 109426861 is a prime.

It is a super-2 number, since 2×109426869² = 23948479318286322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109426861) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19279 + ... + 24300.

It is an arithmetic number, because the mean of its divisors is an integer number (8437088).

Almost surely, 2^109426869 is an apocalyptic number.

It is an amenable number.

109426869 is a deficient number, since it is larger than the sum of its proper divisors (59314891).

109426869 is an equidigital number, since it uses as much as digits as its factorization.

109426869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43622 (or 43613 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 109426869 is about 10460.7298502542. The cubic root of 109426869 is about 478.3083813289.

The spelling of 109426869 in words is "one hundred nine million, four hundred twenty-six thousand, eight hundred sixty-nine".