16204941 has 14 divisors (see below), whose sum is σ = 24297390. Its totient is φ = 10802808.

The previous prime is 16204933. The next prime is 16204943. The reversal of 16204941 is 14940261.

It can be written as a sum of positive squares in only one way, i.e., 12320100 + 3884841 = 3510^2 + 1971^2 .

It is not a de Polignac number, because 16204941 - 2³ = 16204933 is a prime.

It is a super-2 number, since 2×16204941² = 525200225626962, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16204943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 10386 + ... + 11843.

Almost surely, 2^16204941 is an apocalyptic number.

It is an amenable number.

16204941 is a deficient number, since it is larger than the sum of its proper divisors (8092449).

16204941 is an frugal number, since it uses more digits than its factorization.

16204941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22247 (or 22232 counting only the distinct ones).

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

The square root of 16204941 is about 4025.5361133643. The cubic root of 16204941 is about 253.0555216719.

It can be divided in two parts, 1620 and 4941, that added together give a 8-th power (6561 = 3⁸).

The spelling of 16204941 in words is "sixteen million, two hundred four thousand, nine hundred forty-one".