1969864146 has 24 divisors (see below), whose sum is σ = 4269545280. Its totient is φ = 656389656.

The previous prime is 1969864123. The next prime is 1969864153. The reversal of 1969864146 is 6414689691.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1969864092 and 1969864101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37651 + ... + 73193.

It is an arithmetic number, because the mean of its divisors is an integer number (177897720).

Almost surely, 2^1969864146 is an apocalyptic number.

1969864146 is an abundant number, since it is smaller than the sum of its proper divisors (2299681134).

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

1969864146 is a wasteful number, since it uses less digits than its factorization.

1969864146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38630 (or 38627 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 1969864146 is about 44383.1516005792. The cubic root of 1969864146 is about 1253.5608643771.

The spelling of 1969864146 in words is "one billion, nine hundred sixty-nine million, eight hundred sixty-four thousand, one hundred forty-six".