1229392 has 10 divisors (see below), whose sum is σ = 2381978. Its totient is φ = 614688.

The previous prime is 1229381. The next prime is 1229401. The reversal of 1229392 is 2939221.

It can be written as a sum of positive squares in only one way, i.e., 1032256 + 197136 = 1016^2 + 444^2 .

It is a super-2 number, since 2×1229392² = 3022809379328, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1229392.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 38403 + ... + 38434.

2^1229392 is an apocalyptic number.

It is an amenable number.

1229392 is a deficient number, since it is larger than the sum of its proper divisors (1152586).

1229392 is an equidigital number, since it uses as much as digits as its factorization.

1229392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76845 (or 76839 counting only the distinct ones).

The product of its digits is 1944, while the sum is 28.

The square root of 1229392 is about 1108.7795091902. The cubic root of 1229392 is about 107.1264699594.

The spelling of 1229392 in words is "one million, two hundred twenty-nine thousand, three hundred ninety-two".