16444197 has 48 divisors (see below), whose sum is σ = 30176640. Its totient is φ = 8380800.

The previous prime is 16444171. The next prime is 16444201. The reversal of 16444197 is 79144461.

16444197 is a `hidden beast` number, since 1 + 644 + 4 + 1 + 9 + 7 = 666.

It is not a de Polignac number, because 16444197 - 2⁶ = 16444133 is a prime.

It is a super-2 number, since 2×16444197² = 540823229949618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16444297) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42079 + ... + 42467.

It is an arithmetic number, because the mean of its divisors is an integer number (628680).

Almost surely, 2^16444197 is an apocalyptic number.

It is an amenable number.

16444197 is a deficient number, since it is larger than the sum of its proper divisors (13732443).

16444197 is a wasteful number, since it uses less digits than its factorization.

16444197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474 (or 471 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 16444197 is about 4055.1445103720. The cubic root of 16444197 is about 254.2948453656.

It can be divided in two parts, 16444 and 197, that added together give a square (16641 = 129²).

The spelling of 16444197 in words is "sixteen million, four hundred forty-four thousand, one hundred ninety-seven".