190681944 has 16 divisors (see below), whose sum is σ = 476704920. Its totient is φ = 63560640.

The previous prime is 190681927. The next prime is 190681949. The reversal of 190681944 is 449186091.

It is a junction number, because it is equal to n+sod(n) for n = 190681896 and 190681905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190681949) 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, 3972517 + ... + 3972564.

Almost surely, 2^190681944 is an apocalyptic number.

It is an amenable number.

190681944 is an abundant number, since it is smaller than the sum of its proper divisors (286022976).

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

190681944 is a wasteful number, since it uses less digits than its factorization.

190681944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7945090 (or 7945086 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 190681944 is about 13808.7633045107. The cubic root of 190681944 is about 575.5766806716.

It can be divided in two parts, 19068 and 1944, that added together give a palindrome (21012).

The spelling of 190681944 in words is "one hundred ninety million, six hundred eighty-one thousand, nine hundred forty-four".