20742414 has 128 divisors (see below), whose sum is σ = 58060800. Its totient is φ = 4769280.

The previous prime is 20742413. The next prime is 20742443. The reversal of 20742414 is 41424702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20742413) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 149157 + ... + 149295.

It is an arithmetic number, because the mean of its divisors is an integer number (453600).

Almost surely, 2^20742414 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20742414, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29030400).

20742414 is an abundant number, since it is smaller than the sum of its proper divisors (37318386).

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

20742414 is a wasteful number, since it uses less digits than its factorization.

20742414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198.

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 20742414 is about 4554.3840417778. The cubic root of 20742414 is about 274.7597416706.

The spelling of 20742414 in words is "twenty million, seven hundred forty-two thousand, four hundred fourteen".