16063440 has 40 divisors (see below), whose sum is σ = 49797408. Its totient is φ = 4283520.

The previous prime is 16063433. The next prime is 16063469. The reversal of 16063440 is 4436061.

It is a tau number, because it is divible by the number of its divisors (40).

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 16063440.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 33226 + ... + 33705.

Almost surely, 2^16063440 is an apocalyptic number.

16063440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16063440 is an abundant number, since it is smaller than the sum of its proper divisors (33733968).

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

16063440 is a wasteful number, since it uses less digits than its factorization.

16063440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66947 (or 66941 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 16063440 is about 4007.9221549327. The cubic root of 16063440 is about 252.3168099101.

The spelling of 16063440 in words is "sixteen million, sixty-three thousand, four hundred forty".