2078438 has 8 divisors (see below), whose sum is σ = 3202032. Its totient is φ = 1011096.

The previous prime is 2078431. The next prime is 2078443. The reversal of 2078438 is 8348702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2078431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13970 + ... + 14117.

It is an arithmetic number, because the mean of its divisors is an integer number (400254).

2^2078438 is an apocalyptic number.

2078438 is a deficient number, since it is larger than the sum of its proper divisors (1123594).

2078438 is a wasteful number, since it uses less digits than its factorization.

2078438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28126.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 2078438 is about 1441.6788824145. The cubic root of 2078438 is about 127.6181245403.

The spelling of 2078438 in words is "two million, seventy-eight thousand, four hundred thirty-eight".