2031424040 has 16 divisors (see below), whose sum is σ = 4570704180. Its totient is φ = 812569600.

The previous prime is 2031424037. The next prime is 2031424049. The reversal of 2031424040 is 404241302.

It can be written as a sum of positive squares in 2 ways, for example, as 1858816996 + 172607044 = 43114^2 + 13138^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2031424049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25392761 + ... + 25392840.

Almost surely, 2^2031424040 is an apocalyptic number.

2031424040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031424040 is an abundant number, since it is smaller than the sum of its proper divisors (2539280140).

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

2031424040 is a wasteful number, since it uses less digits than its factorization.

2031424040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50785612 (or 50785608 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2031424040 is about 45071.3217023863. The cubic root of 2031424040 is about 1266.4854240525.

Adding to 2031424040 its reverse (404241302), we get a palindrome (2435665342).

The spelling of 2031424040 in words is "two billion, thirty-one million, four hundred twenty-four thousand, forty".