16361400 has 192 divisors, whose sum is σ = 57674880. Its totient is φ = 3801600.

The previous prime is 16361381. The next prime is 16361407. The reversal of 16361400 is 416361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16361407) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 244167 + ... + 244233.

It is an arithmetic number, because the mean of its divisors is an integer number (300390).

Almost surely, 2^16361400 is an apocalyptic number.

16361400 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 16361400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28837440).

16361400 is an abundant number, since it is smaller than the sum of its proper divisors (41313480).

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

16361400 is a wasteful number, since it uses less digits than its factorization.

16361400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 16361400 is about 4044.9227433908. The cubic root of 16361400 is about 253.8673331202.

Adding to 16361400 its reverse (416361), we get a palindrome (16777761).

It can be divided in two parts, 16361 and 400, that added together give a palindrome (16761).

The spelling of 16361400 in words is "sixteen million, three hundred sixty-one thousand, four hundred".