84067380 has 144 divisors (see below), whose sum is σ = 274083264. Its totient is φ = 20782080.

The previous prime is 84067331. The next prime is 84067393. The reversal of 84067380 is 8376048.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 253815 + ... + 254145.

It is an arithmetic number, because the mean of its divisors is an integer number (1903356).

Almost surely, 2^84067380 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 84067380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137041632).

84067380 is an abundant number, since it is smaller than the sum of its proper divisors (190015884).

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

84067380 is a wasteful number, since it uses less digits than its factorization.

84067380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 84067380 is about 9168.8265334229. The cubic root of 84067380 is about 438.0689826923.

The spelling of 84067380 in words is "eighty-four million, sixty-seven thousand, three hundred eighty".