16481790 has 48 divisors (see below), whose sum is σ = 46152288. Its totient is φ = 4056768.

The previous prime is 16481779. The next prime is 16481791. The reversal of 16481790 is 9718461.

16481790 is a `hidden beast` number, since 1 + 648 + 1 + 7 + 9 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16481791) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5874 + ... + 8213.

It is an arithmetic number, because the mean of its divisors is an integer number (961506).

Almost surely, 2^16481790 is an apocalyptic number.

16481790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16481790 is an abundant number, since it is smaller than the sum of its proper divisors (29670498).

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

16481790 is a wasteful number, since it uses less digits than its factorization.

16481790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14113 (or 14110 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 16481790 is about 4059.7770874766. Note that the first 3 decimals coincide. The cubic root of 16481790 is about 254.4884786284.

It can be divided in two parts, 16481 and 790, that added together give a palindrome (17271).

The spelling of 16481790 in words is "sixteen million, four hundred eighty-one thousand, seven hundred ninety".