2101424040 has 64 divisors (see below), whose sum is σ = 7004750400. Its totient is φ = 560379456.

The previous prime is 2101424029. The next prime is 2101424047. The reversal of 2101424040 is 404241012.

2101424040 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (2101424047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 971802 + ... + 973961.

It is an arithmetic number, because the mean of its divisors is an integer number (109449225).

Almost surely, 2^2101424040 is an apocalyptic number.

2101424040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101424040 is an abundant number, since it is smaller than the sum of its proper divisors (4903326360).

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

2101424040 is a wasteful number, since it uses less digits than its factorization.

2101424040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945783 (or 1945773 counting only the distinct ones).

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

The square root of 2101424040 is about 45841.2918666130. The cubic root of 2101424040 is about 1280.8685592585.

Adding to 2101424040 its reverse (404241012), we get a palindrome (2505665052).

It can be divided in two parts, 21014 and 24040, that added together give a palindrome (45054).

The spelling of 2101424040 in words is "two billion, one hundred one million, four hundred twenty-four thousand, forty".