20225438 has 8 divisors (see below), whose sum is σ = 30357288. Its totient is φ = 10106344.

The previous prime is 20225419. The next prime is 20225477. The reversal of 20225438 is 83452202.

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, 4220 + ... + 7632.

It is an arithmetic number, because the mean of its divisors is an integer number (3794661).

Almost surely, 2^20225438 is an apocalyptic number.

20225438 is a deficient number, since it is larger than the sum of its proper divisors (10131850).

20225438 is a wasteful number, since it uses less digits than its factorization.

20225438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6378.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 20225438 is about 4497.2700608258. The cubic root of 20225438 is about 272.4578415828.

The spelling of 20225438 in words is "twenty million, two hundred twenty-five thousand, four hundred thirty-eight".