1962321940 has 24 divisors (see below), whose sum is σ = 4121712000. Its totient is φ = 784769568.

The previous prime is 1962321923. The next prime is 1962321941. The reversal of 1962321940 is 491232691.

It is a self number, because there is not a number n which added to its sum of digits gives 1962321940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1962321941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174529 + ... + 185431.

It is an arithmetic number, because the mean of its divisors is an integer number (171738000).

Almost surely, 2^1962321940 is an apocalyptic number.

1962321940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1962321940 is an abundant number, since it is smaller than the sum of its proper divisors (2159390060).

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

1962321940 is a wasteful number, since it uses less digits than its factorization.

1962321940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19911 (or 19909 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 1962321940 is about 44298.1031196596. The cubic root of 1962321940 is about 1251.9589422990.

The spelling of 1962321940 in words is "one billion, nine hundred sixty-two million, three hundred twenty-one thousand, nine hundred forty".