1931422336 has 64 divisors (see below), whose sum is σ = 3914352000. Its totient is φ = 949118976.

The previous prime is 1931422331. The next prime is 1931422349. The reversal of 1931422336 is 6332241391.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (1931422331) 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, 4135575 + ... + 4136041.

It is an arithmetic number, because the mean of its divisors is an integer number (61161750).

Almost surely, 2^1931422336 is an apocalyptic number.

1931422336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1931422336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1957176000).

1931422336 is an abundant number, since it is smaller than the sum of its proper divisors (1982929664).

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

1931422336 is an equidigital number, since it uses as much as digits as its factorization.

1931422336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969 (or 957 counting only the distinct ones).

The product of its digits is 23328, while the sum is 34.

The square root of 1931422336 is about 43947.9503048777. The cubic root of 1931422336 is about 1245.3528429016.

The spelling of 1931422336 in words is "one billion, nine hundred thirty-one million, four hundred twenty-two thousand, three hundred thirty-six".