2111424140 has 48 divisors (see below), whose sum is σ = 5365507392. Its totient is φ = 681332736.

The previous prime is 2111424137. The next prime is 2111424169. The reversal of 2111424140 is 414241112.

It is a super-2 number, since 2×2111424140² = 8916223797949479200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 441197 + ... + 445956.

It is an arithmetic number, because the mean of its divisors is an integer number (111781404).

Almost surely, 2^2111424140 is an apocalyptic number.

2111424140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111424140 is an abundant number, since it is smaller than the sum of its proper divisors (3254083252).

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

2111424140 is a wasteful number, since it uses less digits than its factorization.

2111424140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887186 (or 887184 counting only the distinct ones).

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

The square root of 2111424140 is about 45950.2354727372. The cubic root of 2111424140 is about 1282.8971121359.

Adding to 2111424140 its reverse (414241112), we get a palindrome (2525665252).

It can be divided in two parts, 21114 and 24140, that added together give a palindrome (45254).

The spelling of 2111424140 in words is "two billion, one hundred eleven million, four hundred twenty-four thousand, one hundred forty".