1229896 has 16 divisors (see below), whose sum is σ = 2355840. Its totient is φ = 601680.

The previous prime is 1229873. The next prime is 1229897. The reversal of 1229896 is 6989221.

1229896 = T₉₀₄ + T₉₀₅ + T₉₀₆.

It is not an unprimeable number, because it can be changed into a prime (1229897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1260 + ... + 2011.

It is an arithmetic number, because the mean of its divisors is an integer number (147240).

2^1229896 is an apocalyptic number.

1229896 is the 906-th centered triangular number.

It is an amenable number.

1229896 is a deficient number, since it is larger than the sum of its proper divisors (1125944).

1229896 is a wasteful number, since it uses less digits than its factorization.

1229896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3324 (or 3320 counting only the distinct ones).

The product of its digits is 15552, while the sum is 37.

The square root of 1229896 is about 1109.0067628288. The cubic root of 1229896 is about 107.1411071037.

The spelling of 1229896 in words is "one million, two hundred twenty-nine thousand, eight hundred ninety-six".