190440056 has 16 divisors (see below), whose sum is σ = 359888640. Its totient is φ = 94469760.

The previous prime is 190440053. The next prime is 190440067. The reversal of 190440056 is 650044091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190440053) 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, 92705 + ... + 94736.

It is an arithmetic number, because the mean of its divisors is an integer number (22493040).

Almost surely, 2^190440056 is an apocalyptic number.

It is an amenable number.

190440056 is a deficient number, since it is larger than the sum of its proper divisors (169448584).

190440056 is a wasteful number, since it uses less digits than its factorization.

190440056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187574 (or 187570 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 190440056 is about 13800.0020289854. The cubic root of 190440056 is about 575.3331966765. Note that the first 3 decimals are identical.

The spelling of 190440056 in words is "one hundred ninety million, four hundred forty thousand, fifty-six".