69955240 has 16 divisors (see below), whose sum is σ = 157399380. Its totient is φ = 27982080.

The previous prime is 69955217. The next prime is 69955247. The reversal of 69955240 is 4255996.

It can be written as a sum of positive squares in 2 ways, for example, as 63329764 + 6625476 = 7958^2 + 2574^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 1748881 = 69955240 / (6 + 9 + 9 + 5 + 5 + 2 + 4 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 69955193 and 69955202.

It is not an unprimeable number, because it can be changed into a prime (69955247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 874401 + ... + 874480.

Almost surely, 2^69955240 is an apocalyptic number.

It is an amenable number.

69955240 is an abundant number, since it is smaller than the sum of its proper divisors (87444140).

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

69955240 is a wasteful number, since it uses less digits than its factorization.

69955240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748892 (or 1748888 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 69955240 is about 8363.9249159710. The cubic root of 69955240 is about 412.0406689989.

The spelling of 69955240 in words is "sixty-nine million, nine hundred fifty-five thousand, two hundred forty".