14999400 has 144 divisors (see below), whose sum is σ = 54332460. Its totient is φ = 3686400.

The previous prime is 14999359. The next prime is 14999407. The reversal of 14999400 is 499941.

It can be written as a sum of positive squares in 6 ways, for example, as 5963364 + 9036036 = 2442^2 + 3006^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14999407) 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, 23080 + ... + 23720.

Almost surely, 2^14999400 is an apocalyptic number.

14999400 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 14999400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27166230).

14999400 is an abundant number, since it is smaller than the sum of its proper divisors (39333060).

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

14999400 is a wasteful number, since it uses less digits than its factorization.

14999400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676 (or 664 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 14999400 is about 3872.9058857659. The cubic root of 14999400 is about 246.6179191064.

The spelling of 14999400 in words is "fourteen million, nine hundred ninety-nine thousand, four hundred".