1429218 has 64 divisors (see below), whose sum is σ = 3840000. Its totient is φ = 384912.

The previous prime is 1429201. The next prime is 1429231. The reversal of 1429218 is 8129241.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1429191 and 1429200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7083 + ... + 7281.

It is an arithmetic number, because the mean of its divisors is an integer number (60000).

2^1429218 is an apocalyptic number.

1429218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1429218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1920000).

1429218 is an abundant number, since it is smaller than the sum of its proper divisors (2410782).

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

1429218 is a wasteful number, since it uses less digits than its factorization.

1429218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 230 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 1429218 is about 1195.4990589708. The cubic root of 1429218 is about 112.6417768079.

The spelling of 1429218 in words is "one million, four hundred twenty-nine thousand, two hundred eighteen".