1872438 has 8 divisors (see below), whose sum is σ = 3744888. Its totient is φ = 624144.

The previous prime is 1872427. The next prime is 1872461. The reversal of 1872438 is 8342781.

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

1872438 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1872399 and 1872408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156031 + ... + 156042.

It is an arithmetic number, because the mean of its divisors is an integer number (468111).

2^1872438 is an apocalyptic number.

1872438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1872438 is a wasteful number, since it uses less digits than its factorization.

1872438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312078.

The product of its digits is 10752, while the sum is 33.

The square root of 1872438 is about 1368.3705638459. The cubic root of 1872438 is about 123.2544142467.

The spelling of 1872438 in words is "one million, eight hundred seventy-two thousand, four hundred thirty-eight".