190894473 has 24 divisors (see below), whose sum is σ = 343776576. Its totient is φ = 99165600.

The previous prime is 190894471. The next prime is 190894519. The reversal of 190894473 is 374498091.

190894473 is a `hidden beast` number, since 1 + 90 + 8 + 94 + 473 = 666.

It is not a de Polignac number, because 190894473 - 2¹ = 190894471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (190894471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 137038 + ... + 138423.

It is an arithmetic number, because the mean of its divisors is an integer number (14324024).

Almost surely, 2^190894473 is an apocalyptic number.

It is an amenable number.

190894473 is a deficient number, since it is larger than the sum of its proper divisors (152882103).

190894473 is a wasteful number, since it uses less digits than its factorization.

190894473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275485 (or 275482 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 190894473 is about 13816.4566007352. The cubic root of 190894473 is about 575.7904420703.

The spelling of 190894473 in words is "one hundred ninety million, eight hundred ninety-four thousand, four hundred seventy-three".