1969632940 has 48 divisors (see below), whose sum is σ = 4552238880. Its totient is φ = 709882880.

The previous prime is 1969632881. The next prime is 1969632949. The reversal of 1969632940 is 492369691.

It is not an unprimeable number, because it can be changed into a prime (1969632949) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 14755 + ... + 64474.

It is an arithmetic number, because the mean of its divisors is an integer number (94838310).

Almost surely, 2^1969632940 is an apocalyptic number.

1969632940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1969632940 is an abundant number, since it is smaller than the sum of its proper divisors (2582605940).

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

1969632940 is a wasteful number, since it uses less digits than its factorization.

1969632940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79362 (or 79360 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 49.

The square root of 1969632940 is about 44380.5468645892. The cubic root of 1969632940 is about 1253.5118183326.

The spelling of 1969632940 in words is "one billion, nine hundred sixty-nine million, six hundred thirty-two thousand, nine hundred forty".