2031440650 has 12 divisors (see below), whose sum is σ = 3778479702. Its totient is φ = 812576240.

The previous prime is 2031440647. The next prime is 2031440713. The reversal of 2031440650 is 560441302.

It can be written as a sum of positive squares in 3 ways, for example, as 846635409 + 1184805241 = 29097^2 + 34421^2 .

It is a super-2 number, since 2×2031440650² = 8253502228944845000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20314357 + ... + 20314456.

Almost surely, 2^2031440650 is an apocalyptic number.

2031440650 is a deficient number, since it is larger than the sum of its proper divisors (1747039052).

2031440650 is a wasteful number, since it uses less digits than its factorization.

2031440650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40628825 (or 40628820 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2031440650 is about 45071.5059655211. The cubic root of 2031440650 is about 1266.4888758619.

Adding to 2031440650 its reverse (560441302), we get a palindrome (2591881952).

The spelling of 2031440650 in words is "two billion, thirty-one million, four hundred forty thousand, six hundred fifty".