16355020 has 48 divisors (see below), whose sum is σ = 39680928. Its totient is φ = 5596160.

The previous prime is 16354973. The next prime is 16355021. The reversal of 16355020 is 2055361.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 16354982 and 16355000.

It is not an unprimeable number, because it can be changed into a prime (16355021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1554 + ... + 5926.

It is an arithmetic number, because the mean of its divisors is an integer number (826686).

Almost surely, 2^16355020 is an apocalyptic number.

16355020 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 16355020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19840464).

16355020 is an abundant number, since it is smaller than the sum of its proper divisors (23325908).

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

16355020 is a wasteful number, since it uses less digits than its factorization.

16355020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4410 (or 4408 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 16355020 is about 4044.1340234963. The cubic root of 16355020 is about 253.8343309697.

The spelling of 16355020 in words is "sixteen million, three hundred fifty-five thousand, twenty".