2111354240 has 64 divisors (see below), whose sum is σ = 5070040560. Its totient is φ = 840763392.

The previous prime is 2111354227. The next prime is 2111354291. The reversal of 2111354240 is 424531112.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138014 + ... + 152546.

Almost surely, 2^2111354240 is an apocalyptic number.

2111354240 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 2111354240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2535020280).

2111354240 is an abundant number, since it is smaller than the sum of its proper divisors (2958686320).

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

2111354240 is a wasteful number, since it uses less digits than its factorization.

2111354240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14779 (or 14767 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2111354240 is about 45949.4748609818. The cubic root of 2111354240 is about 1282.8829549459.

Adding to 2111354240 its reverse (424531112), we get a palindrome (2535885352).

The spelling of 2111354240 in words is "two billion, one hundred eleven million, three hundred fifty-four thousand, two hundred forty".