2031433040 has 160 divisors (see below), whose sum is σ = 5840626176. Its totient is φ = 639866880.

The previous prime is 2031433021. The next prime is 2031433057. The reversal of 2031433040 is 403341302.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1914110 + ... + 1915170.

Almost surely, 2^2031433040 is an apocalyptic number.

2031433040 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 2031433040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2920313088).

2031433040 is an abundant number, since it is smaller than the sum of its proper divisors (3809193136).

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

2031433040 is a wasteful number, since it uses less digits than its factorization.

2031433040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357 (or 1351 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 2031433040 is about 45071.4215440339. The cubic root of 2031433040 is about 1266.4872943911.

Adding to 2031433040 its reverse (403341302), we get a palindrome (2434774342).

The spelling of 2031433040 in words is "two billion, thirty-one million, four hundred thirty-three thousand, forty".