16350420 has 24 divisors (see below), whose sum is σ = 45781344. Its totient is φ = 4360096.

The previous prime is 16350359. The next prime is 16350421. The reversal of 16350420 is 2405361.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16350421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136194 + ... + 136313.

It is an arithmetic number, because the mean of its divisors is an integer number (1907556).

Almost surely, 2^16350420 is an apocalyptic number.

16350420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16350420 is an abundant number, since it is smaller than the sum of its proper divisors (29430924).

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

16350420 is a wasteful number, since it uses less digits than its factorization.

16350420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272519 (or 272517 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 16350420 is about 4043.5652585311. The cubic root of 16350420 is about 253.8105309905.

Adding to 16350420 its reverse (2405361), we get a palindrome (18755781).

The spelling of 16350420 in words is "sixteen million, three hundred fifty thousand, four hundred twenty".