12438750 has 80 divisors (see below), whose sum is σ = 32389632. Its totient is φ = 3180000.

The previous prime is 12438743. The next prime is 12438773. The reversal of 12438750 is 5783421.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 116197 + ... + 116303.

Almost surely, 2^12438750 is an apocalyptic number.

12438750 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 12438750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16194816).

12438750 is an abundant number, since it is smaller than the sum of its proper divisors (19950882).

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

12438750 is a wasteful number, since it uses less digits than its factorization.

12438750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 12438750 is about 3526.8612107652. The cubic root of 12438750 is about 231.6997577652.

The spelling of 12438750 in words is "twelve million, four hundred thirty-eight thousand, seven hundred fifty".