1043264400 has 120 divisors (see below), whose sum is σ = 3350184384. Its totient is φ = 277516800.

The previous prime is 1043264399. The next prime is 1043264401. The reversal of 1043264400 is 44623401.

It is an interprime number because it is at equal distance from previous prime (1043264399) and next prime (1043264401).

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1043264401) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 648397 + ... + 650003.

Almost surely, 2^1043264400 is an apocalyptic number.

1043264400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1043264400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1675092192).

1043264400 is an abundant number, since it is smaller than the sum of its proper divisors (2306919984).

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

1043264400 is a wasteful number, since it uses less digits than its factorization.

1043264400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169 (or 2158 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1043264400 is about 32299.6037127393. The cubic root of 1043264400 is about 1014.2183471377.

Adding to 1043264400 its reverse (44623401), we get a palindrome (1087887801).

The spelling of 1043264400 in words is "one billion, forty-three million, two hundred sixty-four thousand, four hundred".