84841040 has 20 divisors (see below), whose sum is σ = 197255604. Its totient is φ = 33936384.

The previous prime is 84841027. The next prime is 84841051. The reversal of 84841040 is 4014848.

It can be written as a sum of positive squares in 2 ways, for example, as 13337104 + 71503936 = 3652^2 + 8456^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 84840994 and 84841012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 530177 + ... + 530336.

Almost surely, 2^84841040 is an apocalyptic number.

84841040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84841040 is an abundant number, since it is smaller than the sum of its proper divisors (112414564).

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

84841040 is a wasteful number, since it uses less digits than its factorization.

84841040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060526 (or 1060520 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 29.

The square root of 84841040 is about 9210.9196066408. The cubic root of 84841040 is about 439.4087098882.

Adding to 84841040 its reverse (4014848), we get a palindrome (88855888).

The spelling of 84841040 in words is "eighty-four million, eight hundred forty-one thousand, forty".