2031353440 has 24 divisors (see below), whose sum is σ = 4799072880. Its totient is φ = 812541312.

The previous prime is 2031353417. The next prime is 2031353473. The reversal of 2031353440 is 443531302.

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 3 ways as a sum of consecutive naturals, for example, 6347820 + ... + 6348139.

It is an arithmetic number, because the mean of its divisors is an integer number (199961370).

Almost surely, 2^2031353440 is an apocalyptic number.

2031353440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031353440 is an abundant number, since it is smaller than the sum of its proper divisors (2767719440).

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

2031353440 is a wasteful number, since it uses less digits than its factorization.

2031353440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12695974 (or 12695966 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 2031353440 is about 45070.5384924565. The cubic root of 2031353440 is about 1266.4707520942.

Adding to 2031353440 its reverse (443531302), we get a palindrome (2474884742).

The spelling of 2031353440 in words is "two billion, thirty-one million, three hundred fifty-three thousand, four hundred forty".