1243032448 has 32 divisors (see below), whose sum is σ = 2830120560. Its totient is φ = 532727808.

The previous prime is 1243032379. The next prime is 1243032449. The reversal of 1243032448 is 8442303421.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243032449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 692761 + ... + 694552.

Almost surely, 2^1243032448 is an apocalyptic number.

It is an amenable number.

1243032448 is an abundant number, since it is smaller than the sum of its proper divisors (1587088112).

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

1243032448 is an equidigital number, since it uses as much as digits as its factorization.

1243032448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387334 (or 1387322 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

The square root of 1243032448 is about 35256.6652989190. The cubic root of 1243032448 is about 1075.2121299061.

Adding to 1243032448 its reverse (8442303421), we get a palindrome (9685335869).

The spelling of 1243032448 in words is "one billion, two hundred forty-three million, thirty-two thousand, four hundred forty-eight".