1142432656 has 20 divisors (see below), whose sum is σ = 2214416304. Its totient is φ = 570970400.

The previous prime is 1142432647. The next prime is 1142432659. The reversal of 1142432656 is 6562342411.

It is not an unprimeable number, because it can be changed into a prime (1142432659) 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, 26391 + ... + 54601.

Almost surely, 2^1142432656 is an apocalyptic number.

1142432656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1142432656 is a deficient number, since it is larger than the sum of its proper divisors (1071983648).

1142432656 is a wasteful number, since it uses less digits than its factorization.

1142432656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30750 (or 30744 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 1142432656 is about 33799.8913607722. The cubic root of 1142432656 is about 1045.3864571882.

The spelling of 1142432656 in words is "one billion, one hundred forty-two million, four hundred thirty-two thousand, six hundred fifty-six".