84383040 has 224 divisors, whose sum is σ = 317479680. Its totient is φ = 18579456.

The previous prime is 84383027. The next prime is 84383041. The reversal of 84383040 is 4038348.

It is a tau number, because it is divible by the number of its divisors (224).

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

It is a junction number, because it is equal to n+sod(n) for n = 84382989 and 84383007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84383041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 194664 + ... + 195096.

It is an arithmetic number, because the mean of its divisors is an integer number (1417320).

Almost surely, 2^84383040 is an apocalyptic number.

84383040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84383040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158739840).

84383040 is an abundant number, since it is smaller than the sum of its proper divisors (233096640).

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

84383040 is a wasteful number, since it uses less digits than its factorization.

84383040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 479 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 84383040 is about 9186.0241671792. The cubic root of 84383040 is about 438.6165916095.

The spelling of 84383040 in words is "eighty-four million, three hundred eighty-three thousand, forty".