1003134400 has 42 divisors (see below), whose sum is σ = 2468341520. Its totient is φ = 401253120.

The previous prime is 1003134373. The next prime is 1003134403. The reversal of 1003134400 is 44313001.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003134403) 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, 311880 + ... + 315079.

Almost surely, 2^1003134400 is an apocalyptic number.

1003134400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1003134400 is an abundant number, since it is smaller than the sum of its proper divisors (1465207120).

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

1003134400 is an equidigital number, since it uses as much as digits as its factorization.

1003134400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626981 (or 626966 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1003134400 is about 31672.2970433153. The cubic root of 1003134400 is about 1001.0437102898.

Adding to 1003134400 its reverse (44313001), we get a palindrome (1047447401).

The spelling of 1003134400 in words is "one billion, three million, one hundred thirty-four thousand, four hundred".