84388190 has 16 divisors (see below), whose sum is σ = 154765728. Its totient is φ = 33118176.

The previous prime is 84388181. The next prime is 84388201. The reversal of 84388190 is 9188348.

It is a super-2 number, since 2×84388190² = 14242733222952200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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, 79082 + ... + 80141.

It is an arithmetic number, because the mean of its divisors is an integer number (9672858).

Almost surely, 2^84388190 is an apocalyptic number.

84388190 is a deficient number, since it is larger than the sum of its proper divisors (70377538).

84388190 is a wasteful number, since it uses less digits than its factorization.

84388190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159283.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 84388190 is about 9186.3044800398. The cubic root of 84388190 is about 438.6255145301.

The spelling of 84388190 in words is "eighty-four million, three hundred eighty-eight thousand, one hundred ninety".