16349400 has 144 divisors (see below), whose sum is σ = 56871360. Its totient is φ = 4204800.

The previous prime is 16349381. The next prime is 16349401. The reversal of 16349400 is 494361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16349401) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 55654 + ... + 55946.

It is an arithmetic number, because the mean of its divisors is an integer number (394940).

Almost surely, 2^16349400 is an apocalyptic number.

16349400 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 16349400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28435680).

16349400 is an abundant number, since it is smaller than the sum of its proper divisors (40521960).

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

16349400 is a wasteful number, since it uses less digits than its factorization.

16349400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346 (or 334 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 16349400 is about 4043.4391302454. The cubic root of 16349400 is about 253.8052529991.

The spelling of 16349400 in words is "sixteen million, three hundred forty-nine thousand, four hundred".