69420384 has 144 divisors (see below), whose sum is σ = 228206160. Its totient is φ = 19783680.

The previous prime is 69420383. The next prime is 69420391. The reversal of 69420384 is 48302496.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69420383) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53212 + ... + 54500.

It is an arithmetic number, because the mean of its divisors is an integer number (1584765).

Almost surely, 2^69420384 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 69420384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114103080).

69420384 is an abundant number, since it is smaller than the sum of its proper divisors (158785776).

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

69420384 is a wasteful number, since it uses less digits than its factorization.

69420384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333 (or 1322 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 69420384 is about 8331.8895816015. The cubic root of 69420384 is about 410.9878697114.

The spelling of 69420384 in words is "sixty-nine million, four hundred twenty thousand, three hundred eighty-four".