20101484 has 24 divisors (see below), whose sum is σ = 38005968. Its totient is φ = 9247680.

The previous prime is 20101483. The next prime is 20101493. The reversal of 20101484 is 48410102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29354 + ... + 30030.

It is an arithmetic number, because the mean of its divisors is an integer number (1583582).

Almost surely, 2^20101484 is an apocalyptic number.

It is an amenable number.

20101484 is a deficient number, since it is larger than the sum of its proper divisors (17904484).

20101484 is a wasteful number, since it uses less digits than its factorization.

20101484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265 (or 1263 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 20101484 is about 4483.4678542396. The cubic root of 20101484 is about 271.9001038871.

Adding to 20101484 its reverse (48410102), we get a palindrome (68511586).

The spelling of 20101484 in words is "twenty million, one hundred one thousand, four hundred eighty-four".