1243034452 has 18 divisors (see below), whose sum is σ = 2391044474. Its totient is φ = 565015440.

The previous prime is 1243034447. The next prime is 1243034467. The reversal of 1243034452 is 2544303421.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1242139536 + 894916 = 35244^2 + 946^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1243034452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1283643 + ... + 1284610.

Almost surely, 2^1243034452 is an apocalyptic number.

It is an amenable number.

1243034452 is a deficient number, since it is larger than the sum of its proper divisors (1148010022).

1243034452 is a wasteful number, since it uses less digits than its factorization.

1243034452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2568279 (or 2568266 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 1243034452 is about 35256.6937190656. The cubic root of 1243034452 is about 1075.2127077200.

Adding to 1243034452 its reverse (2544303421), we get a palindrome (3787337873).

The spelling of 1243034452 in words is "one billion, two hundred forty-three million, thirty-four thousand, four hundred fifty-two".