1031450400 has 108 divisors (see below), whose sum is σ = 3637177362. Its totient is φ = 275051520.

The previous prime is 1031450389. The next prime is 1031450411. The reversal of 1031450400 is 40541301.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1031450389) and next prime (1031450411).

It can be written as a sum of positive squares in 3 ways, for example, as 403045776 + 628404624 = 20076^2 + 25068^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 64429 + ... + 78828.

Almost surely, 2^1031450400 is an apocalyptic number.

1031450400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031450400 is an abundant number, since it is smaller than the sum of its proper divisors (2605726962).

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

1031450400 is a wasteful number, since it uses less digits than its factorization.

1031450400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143283 (or 143267 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1031450400 is about 32116.2015188596. The cubic root of 1031450400 is about 1010.3754445128.

Adding to 1031450400 its reverse (40541301), we get a palindrome (1071991701).

Subtracting from 1031450400 its reverse (40541301), we obtain a palindrome (990909099).

The spelling of 1031450400 in words is "one billion, thirty-one million, four hundred fifty thousand, four hundred".