1226429 has 4 divisors (see below), whose sum is σ = 1279776. Its totient is φ = 1173084.

The previous prime is 1226417. The next prime is 1226461. The reversal of 1226429 is 9246221.

1226429 = T₃₁₅ + T₃₁₆ + ... + T₃₃₇.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9246221 = 53 ⋅174457.

It is a cyclic number.

It is not a de Polignac number, because 1226429 - 2¹⁶ = 1160893 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1226398 and 1226407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226479) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 26639 + ... + 26684.

It is an arithmetic number, because the mean of its divisors is an integer number (319944).

2^1226429 is an apocalyptic number.

It is an amenable number.

1226429 is a deficient number, since it is larger than the sum of its proper divisors (53347).

1226429 is an equidigital number, since it uses as much as digits as its factorization.

1226429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53346.

The product of its digits is 1728, while the sum is 26.

The square root of 1226429 is about 1107.4425493000. The cubic root of 1226429 is about 107.0403376605.

The spelling of 1226429 in words is "one million, two hundred twenty-six thousand, four hundred twenty-nine".