16345400 has 24 divisors (see below), whose sum is σ = 38003520. Its totient is φ = 6538080.

The previous prime is 16345369. The next prime is 16345403. The reversal of 16345400 is 454361.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16345403) 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 5 ways as a sum of consecutive naturals, for example, 40664 + ... + 41063.

It is an arithmetic number, because the mean of its divisors is an integer number (1583480).

Almost surely, 2^16345400 is an apocalyptic number.

16345400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16345400 is an abundant number, since it is smaller than the sum of its proper divisors (21658120).

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

16345400 is a wasteful number, since it uses less digits than its factorization.

16345400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81743 (or 81734 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 16345400 is about 4042.9444715455. The cubic root of 16345400 is about 253.7845528752.

Adding to 16345400 its reverse (454361), we get a palindrome (16799761).

The spelling of 16345400 in words is "sixteen million, three hundred forty-five thousand, four hundred".