4194990 has 40 divisors (see below), whose sum is σ = 11282040. Its totient is φ = 1118448.

The previous prime is 4194989. The next prime is 4195001. The reversal of 4194990 is 994914.

It is a super-2 number, since 2×4194990² = 35195882200200, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1780 + ... + 3399.

It is an arithmetic number, because the mean of its divisors is an integer number (282051).

Almost surely, 2^4194990 is an apocalyptic number.

4194990 is an abundant number, since it is smaller than the sum of its proper divisors (7087050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4194990 is a wasteful number, since it uses less digits than its factorization.

4194990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5198 (or 5189 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 4194990 is about 2048.1674736212. The cubic root of 4194990 is about 161.2786860809.

It can be divided in two parts, 4194 and 990, that added together give a square (5184 = 72²).

The spelling of 4194990 in words is "four million, one hundred ninety-four thousand, nine hundred ninety".