20820414 has 32 divisors (see below), whose sum is σ = 42760224. Its totient is φ = 6755840.

The previous prime is 20820413. The next prime is 20820419. The reversal of 20820414 is 41402802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20820413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73954 + ... + 74234.

It is an arithmetic number, because the mean of its divisors is an integer number (1336257).

Almost surely, 2^20820414 is an apocalyptic number.

20820414 is an abundant number, since it is smaller than the sum of its proper divisors (21939810).

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

20820414 is a wasteful number, since it uses less digits than its factorization.

20820414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 20820414 is about 4562.9391843416. The cubic root of 20820414 is about 275.1037140482.

The spelling of 20820414 in words is "twenty million, eight hundred twenty thousand, four hundred fourteen".