2111454420 has 48 divisors (see below), whose sum is σ = 6223237440. Its totient is φ = 533419776.

The previous prime is 2111454407. The next prime is 2111454431. The reversal of 2111454420 is 244541112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 924937 + ... + 927216.

It is an arithmetic number, because the mean of its divisors is an integer number (129650780).

Almost surely, 2^2111454420 is an apocalyptic number.

2111454420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111454420 is an abundant number, since it is smaller than the sum of its proper divisors (4111783020).

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

2111454420 is a wasteful number, since it uses less digits than its factorization.

2111454420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852184 (or 1852182 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 2111454420 is about 45950.5649584420. The cubic root of 2111454420 is about 1282.9032447958.

Adding to 2111454420 its reverse (244541112), we get a palindrome (2355995532).

The spelling of 2111454420 in words is "two billion, one hundred eleven million, four hundred fifty-four thousand, four hundred twenty".