15243450 has 48 divisors (see below), whose sum is σ = 38110656. Its totient is φ = 4032000.

The previous prime is 15243443. The next prime is 15243467. The reversal of 15243450 is 5434251.

15243450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 15243450.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22314 + ... + 22986.

It is an arithmetic number, because the mean of its divisors is an integer number (793972).

Almost surely, 2^15243450 is an apocalyptic number.

15243450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 15243450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19055328).

15243450 is an abundant number, since it is smaller than the sum of its proper divisors (22867206).

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

15243450 is a wasteful number, since it uses less digits than its factorization.

15243450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839 (or 834 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 15243450 is about 3904.2861063196. The cubic root of 15243450 is about 247.9482744187.

The spelling of 15243450 in words is "fifteen million, two hundred forty-three thousand, four hundred fifty".