84030880 has 24 divisors (see below), whose sum is σ = 198523332. Its totient is φ = 33612288.

The previous prime is 84030871. The next prime is 84030887. The reversal of 84030880 is 8803048.

It can be written as a sum of positive squares in 2 ways, for example, as 83978896 + 51984 = 9164^2 + 228^2 .

It is a super-2 number, since 2×84030880² = 14122377587148800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84030887) 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, 262437 + ... + 262756.

Almost surely, 2^84030880 is an apocalyptic number.

84030880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84030880 is an abundant number, since it is smaller than the sum of its proper divisors (114492452).

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

84030880 is a wasteful number, since it uses less digits than its factorization.

84030880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525208 (or 525200 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 84030880 is about 9166.8358772261. The cubic root of 84030880 is about 438.0055739024.

The spelling of 84030880 in words is "eighty-four million, thirty thousand, eight hundred eighty".