16800240 has 40 divisors (see below), whose sum is σ = 52081488. Its totient is φ = 4480000.

The previous prime is 16800221. The next prime is 16800269. The reversal of 16800240 is 4200861.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34761 + ... + 35240.

Almost surely, 2^16800240 is an apocalyptic number.

16800240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16800240 is an abundant number, since it is smaller than the sum of its proper divisors (35281248).

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

16800240 is a wasteful number, since it uses less digits than its factorization.

16800240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70017 (or 70011 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 16800240 is about 4098.8095832815. The cubic root of 16800240 is about 256.1170525909.

The spelling of 16800240 in words is "sixteen million, eight hundred thousand, two hundred forty".