16244261 has 4 divisors (see below), whose sum is σ = 17721024. Its totient is φ = 14767500.

The previous prime is 16244243. The next prime is 16244269.

16244261 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 16244261 - 2¹⁸ = 15982117 is a prime.

It is a super-2 number, since 2×16244261² = 527752030872242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16244261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16244269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 738365 + ... + 738386.

It is an arithmetic number, because the mean of its divisors is an integer number (4430256).

Almost surely, 2^16244261 is an apocalyptic number.

16244261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16244261 is a deficient number, since it is larger than the sum of its proper divisors (1476763).

16244261 is a wasteful number, since it uses less digits than its factorization.

16244261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476762.

The product of its digits is 2304, while the sum is 26.

The square root of 16244261 is about 4030.4169759468. The cubic root of 16244261 is about 253.2600293835.

It can be divided in two parts, 1624 and 4261, that added together give a palindrome (5885).

The spelling of 16244261 in words is "sixteen million, two hundred forty-four thousand, two hundred sixty-one".