1969939734 has 64 divisors (see below), whose sum is σ = 4634941440. Its totient is φ = 546549120.

The previous prime is 1969939691. The next prime is 1969939747. The reversal of 1969939734 is 4379399691.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197532 + ... + 207264.

It is an arithmetic number, because the mean of its divisors is an integer number (72420960).

Almost surely, 2^1969939734 is an apocalyptic number.

1969939734 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1969939734, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2317470720).

1969939734 is an abundant number, since it is smaller than the sum of its proper divisors (2665001706).

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

1969939734 is a wasteful number, since it uses less digits than its factorization.

1969939734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9885.

The product of its digits is 9920232, while the sum is 60.

The square root of 1969939734 is about 44384.0031317591. The cubic root of 1969939734 is about 1253.5768981303.

The spelling of 1969939734 in words is "one billion, nine hundred sixty-nine million, nine hundred thirty-nine thousand, seven hundred thirty-four".