16061400 has 72 divisors (see below), whose sum is σ = 53945580. Its totient is φ = 4282560.

The previous prime is 16061399. The next prime is 16061443. The reversal of 16061400 is 416061.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 2662 + ... + 6261.

Almost surely, 2^16061400 is an apocalyptic number.

16061400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16061400 is an abundant number, since it is smaller than the sum of its proper divisors (37884180).

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

16061400 is a wasteful number, since it uses less digits than its factorization.

16061400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8945 (or 8933 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 16061400 is about 4007.6676508912. The cubic root of 16061400 is about 252.3061283442.

Adding to 16061400 its reverse (416061), we get a palindrome (16477461).

It can be divided in two parts, 16061 and 400, that added together give a palindrome (16461).

The spelling of 16061400 in words is "sixteen million, sixty-one thousand, four hundred".