20438202 has 16 divisors (see below), whose sum is σ = 41452992. Its totient is φ = 6716640.

The previous prime is 20438189. The next prime is 20438203. The reversal of 20438202 is 20283402.

It is not an unprimeable number, because it can be changed into a prime (20438203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23563 + ... + 24414.

It is an arithmetic number, because the mean of its divisors is an integer number (2590812).

Almost surely, 2^20438202 is an apocalyptic number.

20438202 is an abundant number, since it is smaller than the sum of its proper divisors (21014790).

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

20438202 is a wasteful number, since it uses less digits than its factorization.

20438202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48053.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 20438202 is about 4520.8629707170. The cubic root of 20438202 is about 273.4098955992.

The spelling of 20438202 in words is "twenty million, four hundred thirty-eight thousand, two hundred two".