69820940 has 48 divisors (see below), whose sum is σ = 168168000. Its totient is φ = 23853312.

The previous prime is 69820889. The next prime is 69820957. The reversal of 69820940 is 4902896.

It is a junction number, because it is equal to n+sod(n) for n = 69820894 and 69820903.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48146 + ... + 49574.

It is an arithmetic number, because the mean of its divisors is an integer number (3503500).

Almost surely, 2^69820940 is an apocalyptic number.

It is an amenable number.

69820940 is an abundant number, since it is smaller than the sum of its proper divisors (98347060).

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

69820940 is a wasteful number, since it uses less digits than its factorization.

69820940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794 (or 1792 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 69820940 is about 8355.8925316210. The cubic root of 69820940 is about 411.7768216603.

The spelling of 69820940 in words is "sixty-nine million, eight hundred twenty thousand, nine hundred forty".