16401824 has 24 divisors (see below), whose sum is σ = 32387040. Its totient is φ = 8176576.

The previous prime is 16401811. The next prime is 16401839. The reversal of 16401824 is 42810461.

It is a junction number, because it is equal to n+sod(n) for n = 16401793 and 16401802.

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 3 ways as a sum of consecutive naturals, for example, 15587 + ... + 16605.

It is an arithmetic number, because the mean of its divisors is an integer number (1349460).

Almost surely, 2^16401824 is an apocalyptic number.

It is an amenable number.

16401824 is a deficient number, since it is larger than the sum of its proper divisors (15985216).

16401824 is a wasteful number, since it uses less digits than its factorization.

16401824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532 (or 1524 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 16401824 is about 4049.9165423500. The cubic root of 16401824 is about 254.0762372679.

The spelling of 16401824 in words is "sixteen million, four hundred one thousand, eight hundred twenty-four".