1429981 has 8 divisors (see below), whose sum is σ = 1659200. Its totient is φ = 1207008.

The previous prime is 1429969. The next prime is 1430027. The reversal of 1429981 is 1899241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1429981 - 2⁹ = 1429469 is a prime.

It is a super-2 number, since 2×1429981² = 4089691320722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1429951) 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 7 ways as a sum of consecutive naturals, for example, 1056 + ... + 1993.

It is an arithmetic number, because the mean of its divisors is an integer number (207400).

2^1429981 is an apocalyptic number.

It is an amenable number.

1429981 is a deficient number, since it is larger than the sum of its proper divisors (229219).

1429981 is an equidigital number, since it uses as much as digits as its factorization.

1429981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3123.

The product of its digits is 5184, while the sum is 34.

The square root of 1429981 is about 1195.8181299847. The cubic root of 1429981 is about 112.6618181606.

The spelling of 1429981 in words is "one million, four hundred twenty-nine thousand, nine hundred eighty-one".