20414140 has 12 divisors (see below), whose sum is σ = 42869736. Its totient is φ = 8165648.

The previous prime is 20414129. The next prime is 20414171. The reversal of 20414140 is 4141402.

It is a super-2 number, since 2×20414140² = 833474223879200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510334 + ... + 510373.

It is an arithmetic number, because the mean of its divisors is an integer number (3572478).

Almost surely, 2^20414140 is an apocalyptic number.

20414140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20414140 is an abundant number, since it is smaller than the sum of its proper divisors (22455596).

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

20414140 is a wasteful number, since it uses less digits than its factorization.

20414140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020716 (or 1020714 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 20414140 is about 4518.2009694125. The cubic root of 20414140 is about 273.3025578411.

Adding to 20414140 its reverse (4141402), we get a palindrome (24555542).

The spelling of 20414140 in words is "twenty million, four hundred fourteen thousand, one hundred forty".