16212880 has 20 divisors (see below), whose sum is σ = 37695132. Its totient is φ = 6485120.

The previous prime is 16212877. The next prime is 16212887. The reversal of 16212880 is 8821261.

It can be written as a sum of positive squares in 2 ways, for example, as 8573184 + 7639696 = 2928^2 + 2764^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16212887) 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, 101251 + ... + 101410.

Almost surely, 2^16212880 is an apocalyptic number.

16212880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16212880 is an abundant number, since it is smaller than the sum of its proper divisors (21482252).

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

16212880 is a wasteful number, since it uses less digits than its factorization.

16212880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202674 (or 202668 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 16212880 is about 4026.5220724591. The cubic root of 16212880 is about 253.0968399299.

The spelling of 16212880 in words is "sixteen million, two hundred twelve thousand, eight hundred eighty".