69083840 has 56 divisors (see below), whose sum is σ = 188012832. Its totient is φ = 23685120.

The previous prime is 69083837. The next prime is 69083849. The reversal of 69083840 is 4838096.

It is a tau number, because it is divible by the number of its divisors (56).

It is a junction number, because it is equal to n+sod(n) for n = 69083794 and 69083803.

It is not an unprimeable number, because it can be changed into a prime (69083849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13181 + ... + 17660.

It is an arithmetic number, because the mean of its divisors is an integer number (3357372).

Almost surely, 2^69083840 is an apocalyptic number.

It is an amenable number.

69083840 is an abundant number, since it is smaller than the sum of its proper divisors (118928992).

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

69083840 is a wasteful number, since it uses less digits than its factorization.

69083840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30865 (or 30855 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 69083840 is about 8311.6689058215. The cubic root of 69083840 is about 410.3226490590.

The spelling of 69083840 in words is "sixty-nine million, eighty-three thousand, eight hundred forty".