32138430 has 32 divisors (see below), whose sum is σ = 78067584. Its totient is φ = 8466336.

The previous prime is 32138423. The next prime is 32138437. The reversal of 32138430 is 3483123.

It is an interprime number because it is at equal distance from previous prime (32138423) and next prime (32138437).

It is a self number, because there is not a number n which added to its sum of digits gives 32138430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32138437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3964 + ... + 8943.

It is an arithmetic number, because the mean of its divisors is an integer number (2439612).

Almost surely, 2^32138430 is an apocalyptic number.

32138430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

32138430 is an abundant number, since it is smaller than the sum of its proper divisors (45929154).

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

32138430 is a wasteful number, since it uses less digits than its factorization.

32138430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13000.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 32138430 is about 5669.0766443928. The cubic root of 32138430 is about 317.9373516870.

The spelling of 32138430 in words is "thirty-two million, one hundred thirty-eight thousand, four hundred thirty".