84145260 has 24 divisors (see below), whose sum is σ = 235606896. Its totient is φ = 22438720.

The previous prime is 84145231. The next prime is 84145261. The reversal of 84145260 is 6254148.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (84145261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 701151 + ... + 701270.

It is an arithmetic number, because the mean of its divisors is an integer number (9816954).

Almost surely, 2^84145260 is an apocalyptic number.

It is an amenable number.

84145260 is an abundant number, since it is smaller than the sum of its proper divisors (151461636).

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

84145260 is a wasteful number, since it uses less digits than its factorization.

84145260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402433 (or 1402431 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 84145260 is about 9173.0725495877. The cubic root of 84145260 is about 438.2042166063.

The spelling of 84145260 in words is "eighty-four million, one hundred forty-five thousand, two hundred sixty".