101909944 has 32 divisors (see below), whose sum is σ = 198288000. Its totient is φ = 49044352.

The previous prime is 101909923. The next prime is 101909947. The reversal of 101909944 is 449909101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101909947) 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, 117657 + ... + 118519.

It is an arithmetic number, because the mean of its divisors is an integer number (6196500).

Almost surely, 2^101909944 is an apocalyptic number.

It is an amenable number.

101909944 is a deficient number, since it is larger than the sum of its proper divisors (96378056).

101909944 is a wasteful number, since it uses less digits than its factorization.

101909944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407 (or 1403 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 101909944 is about 10095.0455174803. The cubic root of 101909944 is about 467.0953254074.

The spelling of 101909944 in words is "one hundred one million, nine hundred nine thousand, nine hundred forty-four".