16554740 has 12 divisors (see below), whose sum is σ = 34764996. Its totient is φ = 6621888.

The previous prime is 16554731. The next prime is 16554743. The reversal of 16554740 is 4745561.

It can be written as a sum of positive squares in 2 ways, for example, as 10214416 + 6340324 = 3196^2 + 2518^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16554697 and 16554706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16554743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413849 + ... + 413888.

It is an arithmetic number, because the mean of its divisors is an integer number (2897083).

Almost surely, 2^16554740 is an apocalyptic number.

16554740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16554740 is an abundant number, since it is smaller than the sum of its proper divisors (18210256).

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

16554740 is a wasteful number, since it uses less digits than its factorization.

16554740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827746 (or 827744 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 16554740 is about 4068.7516513053. The cubic root of 16554740 is about 254.8633895979.

The spelling of 16554740 in words is "sixteen million, five hundred fifty-four thousand, seven hundred forty".