16442917440 has 56 divisors (see below), whose sum is σ = 52206265920. Its totient is φ = 4384777728.

The previous prime is 16442917399. The next prime is 16442917451. The reversal of 16442917440 is 4471924461.

It is a happy number.

It is a super-3 number, since 3×16442917440³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16442917392 and 16442917401.

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, 8563060 + ... + 8564979.

Almost surely, 2^16442917440 is an apocalyptic number.

16442917440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16442917440 is an abundant number, since it is smaller than the sum of its proper divisors (35763348480).

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

16442917440 is a wasteful number, since it uses less digits than its factorization.

16442917440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17128059 (or 17128049 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 16442917440 in words is "sixteen billion, four hundred forty-two million, nine hundred seventeen thousand, four hundred forty".