105640944 has 40 divisors (see below), whose sum is σ = 273672960. Its totient is φ = 35114688.

The previous prime is 105640921. The next prime is 105640979. The reversal of 105640944 is 449046501.

It is a super-2 number, since 2×105640944² = 22320018098422272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15289 + ... + 21095.

It is an arithmetic number, because the mean of its divisors is an integer number (6841824).

Almost surely, 2^105640944 is an apocalyptic number.

It is an amenable number.

105640944 is an abundant number, since it is smaller than the sum of its proper divisors (168032016).

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

105640944 is a wasteful number, since it uses less digits than its factorization.

105640944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6197 (or 6191 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 105640944 is about 10278.1780486621. The cubic root of 105640944 is about 472.7273808320.

The spelling of 105640944 in words is "one hundred five million, six hundred forty thousand, nine hundred forty-four".