84121260 has 48 divisors (see below), whose sum is σ = 237758976. Its totient is φ = 22220992.

The previous prime is 84121249. The next prime is 84121277. The reversal of 84121260 is 6212148.

It is a self number, because there is not a number n which added to its sum of digits gives 84121260.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132 + ... + 12971.

It is an arithmetic number, because the mean of its divisors is an integer number (4953312).

Almost surely, 2^84121260 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84121260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118879488).

84121260 is an abundant number, since it is smaller than the sum of its proper divisors (153637716).

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

84121260 is a wasteful number, since it uses less digits than its factorization.

84121260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13222 (or 13220 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 84121260 is about 9171.7642795702. The cubic root of 84121260 is about 438.1625509548.

The spelling of 84121260 in words is "eighty-four million, one hundred twenty-one thousand, two hundred sixty".