16265620 has 48 divisors (see below), whose sum is σ = 39287808. Its totient is φ = 5541120.

The previous prime is 16265609. The next prime is 16265621. The reversal of 16265620 is 2656261.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16265621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30960 + ... + 31480.

It is an arithmetic number, because the mean of its divisors is an integer number (818496).

Almost surely, 2^16265620 is an apocalyptic number.

16265620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16265620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19643904).

16265620 is an abundant number, since it is smaller than the sum of its proper divisors (23022188).

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

16265620 is a wasteful number, since it uses less digits than its factorization.

16265620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760 (or 758 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 16265620 is about 4033.0658313496. The cubic root of 16265620 is about 253.3709816316.

The spelling of 16265620 in words is "sixteen million, two hundred sixty-five thousand, six hundred twenty".