16472020 has 12 divisors (see below), whose sum is σ = 34591284. Its totient is φ = 6588800.

The previous prime is 16472009. The next prime is 16472021. The reversal of 16472020 is 2027461.

It can be written as a sum of positive squares in 2 ways, for example, as 2304324 + 14167696 = 1518^2 + 3764^2 .

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 16471982 and 16472000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16472021) 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, 411781 + ... + 411820.

It is an arithmetic number, because the mean of its divisors is an integer number (2882607).

Almost surely, 2^16472020 is an apocalyptic number.

16472020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16472020 is an abundant number, since it is smaller than the sum of its proper divisors (18119264).

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

16472020 is a wasteful number, since it uses less digits than its factorization.

16472020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823610 (or 823608 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 16472020 is about 4058.5736410715. The cubic root of 16472020 is about 254.4381838510.

Adding to 16472020 its reverse (2027461), we get a palindrome (18499481).

The spelling of 16472020 in words is "sixteen million, four hundred seventy-two thousand, twenty".