20375438 has 8 divisors (see below), whose sum is σ = 30993840. Its totient is φ = 10044160.

The previous prime is 20375423. The next prime is 20375441. The reversal of 20375438 is 83457302.

It is a happy number.

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

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, 71603 + ... + 71886.

It is an arithmetic number, because the mean of its divisors is an integer number (3874230).

Almost surely, 2^20375438 is an apocalyptic number.

20375438 is a deficient number, since it is larger than the sum of its proper divisors (10618402).

20375438 is a wasteful number, since it uses less digits than its factorization.

20375438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143562.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 20375438 is about 4513.9160382090. The cubic root of 20375438 is about 273.1297356865.

The spelling of 20375438 in words is "twenty million, three hundred seventy-five thousand, four hundred thirty-eight".