69940000 has 120 divisors (see below), whose sum is σ = 185987340. Its totient is φ = 25728000.

The previous prime is 69939971. The next prime is 69940009. The reversal of 69940000 is 4996.

It can be written as a sum of positive squares in 10 ways, for example, as 31945104 + 37994896 = 5652^2 + 6164^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (69940009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 259866 + ... + 260134.

Almost surely, 2^69940000 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 69940000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92993670).

69940000 is an abundant number, since it is smaller than the sum of its proper divisors (116047340).

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

69940000 is a wasteful number, since it uses less digits than its factorization.

69940000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 69940000 is about 8363.0138108220. The cubic root of 69940000 is about 412.0107453131.

Adding to 69940000 its reverse (4996), we get a palindrome (69944996).

The spelling of 69940000 in words is "sixty-nine million, nine hundred forty thousand".