1243431244 has 96 divisors (see below), whose sum is σ = 2549514240. Its totient is φ = 525096000.

The previous prime is 1243431227. The next prime is 1243431253. The reversal of 1243431244 is 4421343421.

It is a super-2 number, since 2×1243431244² = 3092242517110775072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8234569 + ... + 8234719.

It is an arithmetic number, because the mean of its divisors is an integer number (26557440).

Almost surely, 2^1243431244 is an apocalyptic number.

It is an amenable number.

1243431244 is an abundant number, since it is smaller than the sum of its proper divisors (1306082996).

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

1243431244 is a wasteful number, since it uses less digits than its factorization.

1243431244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371 (or 369 counting only the distinct ones).

The product of its digits is 9216, while the sum is 28.

The square root of 1243431244 is about 35262.3204568276. The cubic root of 1243431244 is about 1075.3271026220.

Adding to 1243431244 its reverse (4421343421), we get a palindrome (5664774665).

The spelling of 1243431244 in words is "one billion, two hundred forty-three million, four hundred thirty-one thousand, two hundred forty-four".