109863444 has 12 divisors (see below), whose sum is σ = 256348064. Its totient is φ = 36621144.

The previous prime is 109863443. The next prime is 109863493. The reversal of 109863444 is 444368901.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×109863444² = 24139952655082272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109863443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4577632 + ... + 4577655.

Almost surely, 2^109863444 is an apocalyptic number.

It is an amenable number.

109863444 is an abundant number, since it is smaller than the sum of its proper divisors (146484620).

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

109863444 is a wasteful number, since it uses less digits than its factorization.

109863444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9155294 (or 9155292 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 109863444 is about 10481.5764081554. The cubic root of 109863444 is about 478.9436317460.

The spelling of 109863444 in words is "one hundred nine million, eight hundred sixty-three thousand, four hundred forty-four".