16652440 has 32 divisors (see below), whose sum is σ = 42821280. Its totient is φ = 5709312.

The previous prime is 16652413. The next prime is 16652443. The reversal of 16652440 is 4425661.

16652440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 16652399 and 16652408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16652443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29457 + ... + 30016.

It is an arithmetic number, because the mean of its divisors is an integer number (1338165).

Almost surely, 2^16652440 is an apocalyptic number.

16652440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16652440 is an abundant number, since it is smaller than the sum of its proper divisors (26168840).

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

16652440 is a wasteful number, since it uses less digits than its factorization.

16652440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59491 (or 59487 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 16652440 is about 4080.7401289472. The cubic root of 16652440 is about 255.3637765824.

The spelling of 16652440 in words is "sixteen million, six hundred fifty-two thousand, four hundred forty".