20438102 has 8 divisors (see below), whose sum is σ = 31077336. Its totient is φ = 10078992.

The previous prime is 20438087. The next prime is 20438107. The reversal of 20438102 is 20183402.

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 (20438107) 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, 69848 + ... + 70139.

It is an arithmetic number, because the mean of its divisors is an integer number (3884667).

Almost surely, 2^20438102 is an apocalyptic number.

20438102 is a deficient number, since it is larger than the sum of its proper divisors (10639234).

20438102 is a wasteful number, since it uses less digits than its factorization.

20438102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140062.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 20438102 is about 4520.8519108681. The cubic root of 20438102 is about 273.4094496853.

The spelling of 20438102 in words is "twenty million, four hundred thirty-eight thousand, one hundred two".