1969354939 has 8 divisors (see below), whose sum is σ = 2042003520. Its totient is φ = 1897022400.

The previous prime is 1969354843. The next prime is 1969355057. The reversal of 1969354939 is 9394539691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1969354939 - 2⁷ = 1969354811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1969351939) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 66282 + ... + 91279.

It is an arithmetic number, because the mean of its divisors is an integer number (255250440).

Almost surely, 2^1969354939 is an apocalyptic number.

1969354939 is a deficient number, since it is larger than the sum of its proper divisors (72648581).

1969354939 is a wasteful number, since it uses less digits than its factorization.

1969354939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158021.

The product of its digits is 7085880, while the sum is 58.

The square root of 1969354939 is about 44377.4147399327. The cubic root of 1969354939 is about 1253.4528405187.

The spelling of 1969354939 in words is "one billion, nine hundred sixty-nine million, three hundred fifty-four thousand, nine hundred thirty-nine".