16194420 has 72 divisors (see below), whose sum is σ = 53595360. Its totient is φ = 3925440.

The previous prime is 16194413. The next prime is 16194427. The reversal of 16194420 is 2449161.

16194420 is a `hidden beast` number, since 1 + 619 + 4 + 42 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (16194413) and next prime (16194427).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16194427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2110 + ... + 6069.

It is an arithmetic number, because the mean of its divisors is an integer number (744380).

Almost surely, 2^16194420 is an apocalyptic number.

16194420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16194420 is an abundant number, since it is smaller than the sum of its proper divisors (37400940).

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

16194420 is a wasteful number, since it uses less digits than its factorization.

16194420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8205 (or 8200 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 16194420 is about 4024.2291187257. The cubic root of 16194420 is about 253.0007446848. Note that the first 3 decimals are identical.

The spelling of 16194420 in words is "sixteen million, one hundred ninety-four thousand, four hundred twenty".