1284629452 has 6 divisors (see below), whose sum is σ = 2248101548. Its totient is φ = 642314724.

The previous prime is 1284629449. The next prime is 1284629453. The reversal of 1284629452 is 2549264821.

It is a junction number, because it is equal to n+sod(n) for n = 1284629399 and 1284629408.

It is not an unprimeable number, because it can be changed into a prime (1284629453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160578678 + ... + 160578685.

Almost surely, 2^1284629452 is an apocalyptic number.

It is an amenable number.

1284629452 is a deficient number, since it is larger than the sum of its proper divisors (963472096).

1284629452 is a wasteful number, since it uses less digits than its factorization.

1284629452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321157367 (or 321157365 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

The square root of 1284629452 is about 35841.7278043344. The cubic root of 1284629452 is about 1087.0744577537.

The spelling of 1284629452 in words is "one billion, two hundred eighty-four million, six hundred twenty-nine thousand, four hundred fifty-two".