16441440 has 48 divisors (see below), whose sum is σ = 51792048. Its totient is φ = 4384256.

The previous prime is 16441433. The next prime is 16441457. The reversal of 16441440 is 4414461.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-3 number, since 3×16441440³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 16441440.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16647 + ... + 17606.

It is an arithmetic number, because the mean of its divisors is an integer number (1079001).

Almost surely, 2^16441440 is an apocalyptic number.

16441440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16441440 is an abundant number, since it is smaller than the sum of its proper divisors (35350608).

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

16441440 is a wasteful number, since it uses less digits than its factorization.

16441440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34271 (or 34263 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 16441440 is about 4054.8045575588. The cubic root of 16441440 is about 254.2806330557.

The spelling of 16441440 in words is "sixteen million, four hundred forty-one thousand, four hundred forty".