84554240 has 40 divisors (see below), whose sum is σ = 202738140. Its totient is φ = 33820672.

The previous prime is 84554219. The next prime is 84554291. The reversal of 84554240 is 4245548.

It can be written as a sum of positive squares in 2 ways, for example, as 68425984 + 16128256 = 8272^2 + 4016^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 84554197 and 84554206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13955 + ... + 19074.

Almost surely, 2^84554240 is an apocalyptic number.

84554240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84554240 is an abundant number, since it is smaller than the sum of its proper divisors (118183900).

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

84554240 is an equidigital number, since it uses as much as digits as its factorization.

84554240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33052 (or 33036 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

The square root of 84554240 is about 9195.3379492001. The cubic root of 84554240 is about 438.9130194024.

Adding to 84554240 its reverse (4245548), we get a palindrome (88799788).

The spelling of 84554240 in words is "eighty-four million, five hundred fifty-four thousand, two hundred forty".