20040149100 has 144 divisors (see below), whose sum is σ = 61772796288. Its totient is φ = 4998620160.

The previous prime is 20040149081. The next prime is 20040149119. The reversal of 20040149100 is 194104002.

It is an interprime number because it is at equal distance from previous prime (20040149081) and next prime (20040149119).

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 47 ways as a sum of consecutive naturals, for example, 819247 + ... + 843353.

It is an arithmetic number, because the mean of its divisors is an integer number (428977752).

Almost surely, 2^20040149100 is an apocalyptic number.

20040149100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20040149100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30886398144).

20040149100 is an abundant number, since it is smaller than the sum of its proper divisors (41732647188).

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

20040149100 is a wasteful number, since it uses less digits than its factorization.

20040149100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24304 (or 24297 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The spelling of 20040149100 in words is "twenty billion, forty million, one hundred forty-nine thousand, one hundred".