84070540 has 12 divisors (see below), whose sum is σ = 176548176. Its totient is φ = 33628208.

The previous prime is 84070499. The next prime is 84070583. The reversal of 84070540 is 4507048.

It is a junction number, because it is equal to n+sod(n) for n = 84070499 and 84070508.

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, 2101744 + ... + 2101783.

It is an arithmetic number, because the mean of its divisors is an integer number (14712348).

Almost surely, 2^84070540 is an apocalyptic number.

It is an amenable number.

84070540 is an abundant number, since it is smaller than the sum of its proper divisors (92477636).

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

84070540 is a wasteful number, since it uses less digits than its factorization.

84070540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4203536 (or 4203534 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 84070540 is about 9168.9988548369. The cubic root of 84070540 is about 438.0744714666.

Adding to 84070540 its reverse (4507048), we get a palindrome (88577588).

The spelling of 84070540 in words is "eighty-four million, seventy thousand, five hundred forty".