16348438 has 4 divisors (see below), whose sum is σ = 24522660. Its totient is φ = 8174218.

The previous prime is 16348403. The next prime is 16348481. The reversal of 16348438 is 83484361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83484361 = 47 ⋅1776263.

It is a junction number, because it is equal to n+sod(n) for n = 16348397 and 16348406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4087108 + ... + 4087111.

It is an arithmetic number, because the mean of its divisors is an integer number (6130665).

Almost surely, 2^16348438 is an apocalyptic number.

16348438 is a deficient number, since it is larger than the sum of its proper divisors (8174222).

16348438 is an equidigital number, since it uses as much as digits as its factorization.

16348438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8174221.

The product of its digits is 55296, while the sum is 37.

The square root of 16348438 is about 4043.3201703551. The cubic root of 16348438 is about 253.8002749277.

The spelling of 16348438 in words is "sixteen million, three hundred forty-eight thousand, four hundred thirty-eight".