2031416640 has 168 divisors, whose sum is σ = 7622548128. Its totient is φ = 492456960.

The previous prime is 2031416633. The next prime is 2031416663. The reversal of 2031416640 is 466141302.

2031416640 is a `hidden beast` number, since 2 + 0 + 3 + 1 + 4 + 16 + 640 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 382 + ... + 63741.

Almost surely, 2^2031416640 is an apocalyptic number.

2031416640 is a gapful number since it is divisible by the number (20) 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 2031416640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3811274064).

2031416640 is an abundant number, since it is smaller than the sum of its proper divisors (5591131488).

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

2031416640 is a wasteful number, since it uses less digits than its factorization.

2031416640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64157 (or 64144 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 2031416640 is about 45071.2396101993. The cubic root of 2031416640 is about 1266.4838862145.

Adding to 2031416640 its reverse (466141302), we get a palindrome (2497557942).

The spelling of 2031416640 in words is "two billion, thirty-one million, four hundred sixteen thousand, six hundred forty".