20301140 has 12 divisors (see below), whose sum is σ = 42632436. Its totient is φ = 8120448.

The previous prime is 20301137. The next prime is 20301181. The reversal of 20301140 is 4110302.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3671056 + 16630084 = 1916^2 + 4078^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 507509 + ... + 507548.

It is an arithmetic number, because the mean of its divisors is an integer number (3552703).

Almost surely, 2^20301140 is an apocalyptic number.

20301140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20301140 is an abundant number, since it is smaller than the sum of its proper divisors (22331296).

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

20301140 is a wasteful number, since it uses less digits than its factorization.

20301140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015066 (or 1015064 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 20301140 is about 4505.6786392285. The cubic root of 20301140 is about 272.7973467749.

Adding to 20301140 its reverse (4110302), we get a palindrome (24411442).

The spelling of 20301140 in words is "twenty million, three hundred one thousand, one hundred forty".