1931359452 has 96 divisors (see below), whose sum is σ = 5036774400. Its totient is φ = 571084800.

The previous prime is 1931359439. The next prime is 1931359459. The reversal of 1931359452 is 2549531391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1931359459) 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 31 ways as a sum of consecutive naturals, for example, 927052 + ... + 929132.

It is an arithmetic number, because the mean of its divisors is an integer number (52466400).

Almost surely, 2^1931359452 is an apocalyptic number.

1931359452 is a gapful number since it is divisible by the number (12) 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 1931359452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2518387200).

1931359452 is an abundant number, since it is smaller than the sum of its proper divisors (3105414948).

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

1931359452 is a wasteful number, since it uses less digits than its factorization.

1931359452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2267 (or 2265 counting only the distinct ones).

The product of its digits is 145800, while the sum is 42.

The square root of 1931359452 is about 43947.2348618204. The cubic root of 1931359452 is about 1245.3393271941.

The spelling of 1931359452 in words is "one billion, nine hundred thirty-one million, three hundred fifty-nine thousand, four hundred fifty-two".