190804642 has 16 divisors (see below), whose sum is σ = 341315712. Its totient is φ = 78217920.

The previous prime is 190804637. The next prime is 190804667. The reversal of 190804642 is 246408091.

It is a super-2 number, since 2×190804642² = 72812822817496328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 190804598 and 190804607.

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, 295959 + ... + 296602.

It is an arithmetic number, because the mean of its divisors is an integer number (21332232).

Almost surely, 2^190804642 is an apocalyptic number.

190804642 is a deficient number, since it is larger than the sum of its proper divisors (150511070).

190804642 is a wasteful number, since it uses less digits than its factorization.

190804642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592593.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 190804642 is about 13813.2053485062. The cubic root of 190804642 is about 575.7001095322.

The spelling of 190804642 in words is "one hundred ninety million, eight hundred four thousand, six hundred forty-two".