1229634240 has 56 divisors (see below), whose sum is σ = 3904091760. Its totient is φ = 327902208.

The previous prime is 1229634181. The next prime is 1229634253. The reversal of 1229634240 is 424369221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 639475 + ... + 641394.

Almost surely, 2^1229634240 is an apocalyptic number.

1229634240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1229634240 is an abundant number, since it is smaller than the sum of its proper divisors (2674457520).

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

1229634240 is a wasteful number, since it uses less digits than its factorization.

1229634240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280889 (or 1280879 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 1229634240 is about 35066.1409339551. The cubic root of 1229634240 is about 1071.3350558127.

The spelling of 1229634240 in words is "one billion, two hundred twenty-nine million, six hundred thirty-four thousand, two hundred forty".