16212620 has 24 divisors (see below), whose sum is σ = 34128864. Its totient is φ = 6469376.

The previous prime is 16212613. The next prime is 16212629. The reversal of 16212620 is 2621261.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 16212592 and 16212601.

It is not an unprimeable number, because it can be changed into a prime (16212629) 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 7 ways as a sum of consecutive naturals, for example, 11177 + ... + 12543.

It is an arithmetic number, because the mean of its divisors is an integer number (1422036).

Almost surely, 2^16212620 is an apocalyptic number.

16212620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16212620 is an abundant number, since it is smaller than the sum of its proper divisors (17916244).

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

16212620 is a wasteful number, since it uses less digits than its factorization.

16212620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969 (or 1967 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 16212620 is about 4026.4897864020. The cubic root of 16212620 is about 253.0954869823.

Adding to 16212620 its reverse (2621261), we get a palindrome (18833881).

The spelling of 16212620 in words is "sixteen million, two hundred twelve thousand, six hundred twenty".