69440000 has 200 divisors, whose sum is σ = 204534528. Its totient is φ = 23040000.

The previous prime is 69439999. The next prime is 69440011. The reversal of 69440000 is 4496.

It is a tau number, because it is divible by the number of its divisors (200).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2239985 + ... + 2240015.

Almost surely, 2^69440000 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 69440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102267264).

69440000 is an abundant number, since it is smaller than the sum of its proper divisors (135094528).

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

69440000 is an frugal number, since it uses more digits than its factorization.

69440000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76 (or 45 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 69440000 is about 8333.0666623999. The cubic root of 69440000 is about 411.0265767806.

Adding to 69440000 its reverse (4496), we get a palindrome (69444496).

The spelling of 69440000 in words is "sixty-nine million, four hundred forty thousand".