1243114400 has 72 divisors (see below), whose sum is σ = 3310663104. Its totient is φ = 452038400.

The previous prime is 1243114381. The next prime is 1243114403. The reversal of 1243114400 is 44113421.

It is a super-2 number, since 2×1243114400² = 3090666822974720000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (1243114403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61832 + ... + 79431.

It is an arithmetic number, because the mean of its divisors is an integer number (45981432).

Almost surely, 2^1243114400 is an apocalyptic number.

1243114400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1243114400 is an abundant number, since it is smaller than the sum of its proper divisors (2067548704).

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

1243114400 is a wasteful number, since it uses less digits than its factorization.

1243114400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141294 (or 141281 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1243114400 is about 35257.8274997198. The cubic root of 1243114400 is about 1075.2357586398.

Adding to 1243114400 its reverse (44113421), we get a palindrome (1287227821).

The spelling of 1243114400 in words is "one billion, two hundred forty-three million, one hundred fourteen thousand, four hundred".