12072438 has 24 divisors (see below), whose sum is σ = 29893968. Its totient is φ = 3449232.

The previous prime is 12072419. The next prime is 12072457. The reversal of 12072438 is 83427021.

It is an interprime number because it is at equal distance from previous prime (12072419) and next prime (12072457).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47781 + ... + 48032.

It is an arithmetic number, because the mean of its divisors is an integer number (1245582).

Almost surely, 2^12072438 is an apocalyptic number.

12072438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12072438 is an abundant number, since it is smaller than the sum of its proper divisors (17821530).

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

12072438 is a wasteful number, since it uses less digits than its factorization.

12072438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95828 (or 95825 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 12072438 is about 3474.5414085891. The cubic root of 12072438 is about 229.4025958280.

Adding to 12072438 its reverse (83427021), we get a palindrome (95499459).

The spelling of 12072438 in words is "twelve million, seventy-two thousand, four hundred thirty-eight".