16260820 has 12 divisors (see below), whose sum is σ = 34147764. Its totient is φ = 6504320.

The previous prime is 16260799. The next prime is 16260821. The reversal of 16260820 is 2806261.

It can be written as a sum of positive squares in 2 ways, for example, as 8398404 + 7862416 = 2898^2 + 2804^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16260821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406501 + ... + 406540.

It is an arithmetic number, because the mean of its divisors is an integer number (2845647).

Almost surely, 2^16260820 is an apocalyptic number.

16260820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16260820 is an abundant number, since it is smaller than the sum of its proper divisors (17886944).

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

16260820 is a wasteful number, since it uses less digits than its factorization.

16260820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813050 (or 813048 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 16260820 is about 4032.4707066512. The cubic root of 16260820 is about 253.3460558400.

The spelling of 16260820 in words is "sixteen million, two hundred sixty thousand, eight hundred twenty".