1030440400 has 60 divisors (see below), whose sum is σ = 2700702144. Its totient is φ = 374704000.

The previous prime is 1030440391. The next prime is 1030440427. The reversal of 1030440400 is 40440301.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112696 + ... + 121495.

Almost surely, 2^1030440400 is an apocalyptic number.

1030440400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030440400 is an abundant number, since it is smaller than the sum of its proper divisors (1670261744).

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

1030440400 is a wasteful number, since it uses less digits than its factorization.

1030440400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234220 (or 234209 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1030440400 is about 32100.4735167567. The cubic root of 1030440400 is about 1010.0455490356.

Adding to 1030440400 its reverse (40440301), we get a palindrome (1070880701).

Subtracting from 1030440400 its reverse (40440301), we obtain a palindrome (990000099).

The spelling of 1030440400 in words is "one billion, thirty million, four hundred forty thousand, four hundred".