190404026 has 8 divisors (see below), whose sum is σ = 285806964. Its totient is φ = 95135040.

The previous prime is 190404013. The next prime is 190404031. The reversal of 190404026 is 620404091.

It can be written as a sum of positive squares in 2 ways, for example, as 167832025 + 22572001 = 12955^2 + 4751^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 190403986 and 190404004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29855 + ... + 35666.

Almost surely, 2^190404026 is an apocalyptic number.

190404026 is a deficient number, since it is larger than the sum of its proper divisors (95402938).

190404026 is a wasteful number, since it uses less digits than its factorization.

190404026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66976.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 190404026 is about 13798.6965326439. The cubic root of 190404026 is about 575.2969113085.

The spelling of 190404026 in words is "one hundred ninety million, four hundred four thousand, twenty-six".