1429428 has 144 divisors (see below), whose sum is σ = 4826304. Its totient is φ = 322560.

The previous prime is 1429423. The next prime is 1429451. The reversal of 1429428 is 8249241.

It is a junction number, because it is equal to n+sod(n) for n = 1429395 and 1429404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1429423) 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 47 ways as a sum of consecutive naturals, for example, 84076 + ... + 84092.

It is an arithmetic number, because the mean of its divisors is an integer number (33516).

2^1429428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1429428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2413152).

1429428 is an abundant number, since it is smaller than the sum of its proper divisors (3396876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1429428 is a wasteful number, since it uses less digits than its factorization.

1429428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62 (or 53 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 1429428 is about 1195.5868851740. The cubic root of 1429428 is about 112.6472934878.

The spelling of 1429428 in words is "one million, four hundred twenty-nine thousand, four hundred twenty-eight".