84469440 has 224 divisors, whose sum is σ = 308701440. Its totient is φ = 19353600.

The previous prime is 84469423. The next prime is 84469453. The reversal of 84469440 is 4496448.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 200430 + ... + 200850.

Almost surely, 2^84469440 is an apocalyptic number.

84469440 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 84469440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154350720).

84469440 is an abundant number, since it is smaller than the sum of its proper divisors (224232000).

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

84469440 is a wasteful number, since it uses less digits than its factorization.

84469440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 84469440 is about 9190.7257602433. The cubic root of 84469440 is about 438.7662407443.

The spelling of 84469440 in words is "eighty-four million, four hundred sixty-nine thousand, four hundred forty".