69866140 has 12 divisors (see below), whose sum is σ = 146718936. Its totient is φ = 27946448.

The previous prime is 69866131. The next prime is 69866161. The reversal of 69866140 is 4166896.

It is a junction number, because it is equal to n+sod(n) for n = 69866093 and 69866102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1746634 + ... + 1746673.

It is an arithmetic number, because the mean of its divisors is an integer number (12226578).

Almost surely, 2^69866140 is an apocalyptic number.

It is an amenable number.

69866140 is an abundant number, since it is smaller than the sum of its proper divisors (76852796).

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

69866140 is a wasteful number, since it uses less digits than its factorization.

69866140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3493316 (or 3493314 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 69866140 is about 8358.5967721861. The cubic root of 69866140 is about 411.8656598485.

The spelling of 69866140 in words is "sixty-nine million, eight hundred sixty-six thousand, one hundred forty".