2011423040 has 224 divisors, whose sum is σ = 5441192064. Its totient is φ = 701890560.

The previous prime is 2011423019. The next prime is 2011423069. The reversal of 2011423040 is 403241102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14681852 + ... + 14681988.

It is an arithmetic number, because the mean of its divisors is an integer number (24291036).

Almost surely, 2^2011423040 is an apocalyptic number.

2011423040 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 2011423040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2720596032).

2011423040 is an abundant number, since it is smaller than the sum of its proper divisors (3429769024).

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

2011423040 is a wasteful number, since it uses less digits than its factorization.

2011423040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2011423040 is about 44848.8911791585. The cubic root of 2011423040 is about 1262.3151857037.

Adding to 2011423040 its reverse (403241102), we get a palindrome (2414664142).

It can be divided in two parts, 201 and 1423040, that added together give a palindrome (1423241).

The spelling of 2011423040 in words is "two billion, eleven million, four hundred twenty-three thousand, forty".