69540844 has 12 divisors (see below), whose sum is σ = 122089968. Its totient is φ = 34658000.

The previous prime is 69540839. The next prime is 69540851. The reversal of 69540844 is 44804596.

It is a junction number, because it is equal to n+sod(n) for n = 69540797 and 69540806.

It is an unprimeable number.

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, 26707 + ... + 29194.

It is an arithmetic number, because the mean of its divisors is an integer number (10174164).

Almost surely, 2^69540844 is an apocalyptic number.

It is an amenable number.

69540844 is a deficient number, since it is larger than the sum of its proper divisors (52549124).

69540844 is a wasteful number, since it uses less digits than its factorization.

69540844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56216 (or 56214 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 69540844 is about 8339.1153007978. The cubic root of 69540844 is about 411.2254511820.

The spelling of 69540844 in words is "sixty-nine million, five hundred forty thousand, eight hundred forty-four".