84440480 has 24 divisors (see below), whose sum is σ = 199491012. Its totient is φ = 33776128.

The previous prime is 84440449. The next prime is 84440483. The reversal of 84440480 is 8404448.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 76667536 + 7772944 = 8756^2 + 2788^2 .

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

It is not an unprimeable number, because it can be changed into a prime (84440483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263717 + ... + 264036.

Almost surely, 2^84440480 is an apocalyptic number.

84440480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84440480 is an abundant number, since it is smaller than the sum of its proper divisors (115050532).

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

84440480 is a wasteful number, since it uses less digits than its factorization.

84440480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527768 (or 527760 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

The square root of 84440480 is about 9189.1501239233. The cubic root of 84440480 is about 438.7160919459.

The spelling of 84440480 in words is "eighty-four million, four hundred forty thousand, four hundred eighty".