841042440 has 384 divisors, whose sum is σ = 3321077760. Its totient is φ = 187432704.

The previous prime is 841042439. The next prime is 841042457. The reversal of 841042440 is 44240148.

It is a happy number.

841042440 is a `hidden beast` number, since 8 + 410 + 4 + 244 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3197749 + ... + 3198011.

It is an arithmetic number, because the mean of its divisors is an integer number (8648640).

Almost surely, 2^841042440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 841042440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1660538880).

841042440 is an abundant number, since it is smaller than the sum of its proper divisors (2480035320).

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

841042440 is a wasteful number, since it uses less digits than its factorization.

841042440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343 (or 327 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

The square root of 841042440 is about 29000.7317149068. The cubic root of 841042440 is about 943.9289452647.

Adding to 841042440 its reverse (44240148), we get a palindrome (885282588).

The spelling of 841042440 in words is "eight hundred forty-one million, forty-two thousand, four hundred forty".