84090190 has 8 divisors (see below), whose sum is σ = 151362360. Its totient is φ = 33636072.

The previous prime is 84090161. The next prime is 84090203. The reversal of 84090190 is 9109048.

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

It is a super-2 number, since 2×84090190² = 14142320108472200, which contains 22 as substring.

It is a congruent number.

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, 4204500 + ... + 4204519.

It is an arithmetic number, because the mean of its divisors is an integer number (18920295).

Almost surely, 2^84090190 is an apocalyptic number.

84090190 is a deficient number, since it is larger than the sum of its proper divisors (67272170).

84090190 is a wasteful number, since it uses less digits than its factorization.

84090190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8409026.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 84090190 is about 9170.0703377891. The cubic root of 84090190 is about 438.1085995246.

The spelling of 84090190 in words is "eighty-four million, ninety thousand, one hundred ninety".