1031440450 has 12 divisors (see below), whose sum is σ = 1918479330. Its totient is φ = 412576160.

The previous prime is 1031440447. The next prime is 1031440457. The reversal of 1031440450 is 540441301.

It can be written as a sum of positive squares in 3 ways, for example, as 982258281 + 49182169 = 31341^2 + 7013^2 .

It is not an unprimeable number, because it can be changed into a prime (1031440457) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10314355 + ... + 10314454.

Almost surely, 2^1031440450 is an apocalyptic number.

1031440450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1031440450 is a deficient number, since it is larger than the sum of its proper divisors (887038880).

1031440450 is a wasteful number, since it uses less digits than its factorization.

1031440450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20628821 (or 20628816 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1031440450 is about 32116.0466122467. The cubic root of 1031440450 is about 1010.3721956030.

Adding to 1031440450 its reverse (540441301), we get a palindrome (1571881751).

The spelling of 1031440450 in words is "one billion, thirty-one million, four hundred forty thousand, four hundred fifty".