16440383924 has 12 divisors (see below), whose sum is σ = 28783641348. Its totient is φ = 8216486400.

The previous prime is 16440383909. The next prime is 16440383959. The reversal of 16440383924 is 42938304461.

It can be written as a sum of positive squares in 2 ways, for example, as 14770027024 + 1670356900 = 121532^2 + 40870^2 .

It is a super-3 number, since 3×16440383924³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 916397 + ... + 934164.

It is an arithmetic number, because the mean of its divisors is an integer number (2398636779).

Almost surely, 2^16440383924 is an apocalyptic number.

It is an amenable number.

16440383924 is a deficient number, since it is larger than the sum of its proper divisors (12343257424).

16440383924 is a wasteful number, since it uses less digits than its factorization.

16440383924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1852786 (or 1852784 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 44.

The spelling of 16440383924 in words is "sixteen billion, four hundred forty million, three hundred eighty-three thousand, nine hundred twenty-four".