1229408 has 24 divisors (see below), whose sum is σ = 2450448. Its totient is φ = 607104.

The previous prime is 1229401. The next prime is 1229443. The reversal of 1229408 is 8049221.

It is a super-2 number, since 2×1229408² = 3022888060928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1229401) 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, 3110 + ... + 3482.

It is an arithmetic number, because the mean of its divisors is an integer number (102102).

2^1229408 is an apocalyptic number.

It is an amenable number.

1229408 is a deficient number, since it is larger than the sum of its proper divisors (1221040).

1229408 is a wasteful number, since it uses less digits than its factorization.

1229408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1229408 is about 1108.7867243072. The cubic root of 1229408 is about 107.1269346921.

The spelling of 1229408 in words is "one million, two hundred twenty-nine thousand, four hundred eight".