2102144040 has 192 divisors, whose sum is σ = 7314840000. Its totient is φ = 521966592.

The previous prime is 2102144017. The next prime is 2102144081. The reversal of 2102144040 is 404412012.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 400956 + ... + 406164.

It is an arithmetic number, because the mean of its divisors is an integer number (38098125).

Almost surely, 2^2102144040 is an apocalyptic number.

2102144040 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 2102144040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3657420000).

2102144040 is an abundant number, since it is smaller than the sum of its proper divisors (5212695960).

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

2102144040 is a wasteful number, since it uses less digits than its factorization.

2102144040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5304 (or 5297 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2102144040 is about 45849.1443758769. The cubic root of 2102144040 is about 1281.0148283343.

Adding to 2102144040 its reverse (404412012), we get a palindrome (2506556052).

The spelling of 2102144040 in words is "two billion, one hundred two million, one hundred forty-four thousand, forty".