1424729 has 4 divisors (see below), whose sum is σ = 1470720. Its totient is φ = 1378740.

The previous prime is 1424723. The next prime is 1424737. The reversal of 1424729 is 9274241.

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: 9274241 = 41 ⋅226201.

It is a cyclic number.

It is not a de Polignac number, because 1424729 - 2¹² = 1420633 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1424723) 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, 22949 + ... + 23010.

It is an arithmetic number, because the mean of its divisors is an integer number (367680).

2^1424729 is an apocalyptic number.

It is an amenable number.

1424729 is a deficient number, since it is larger than the sum of its proper divisors (45991).

1424729 is an equidigital number, since it uses as much as digits as its factorization.

1424729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45990.

The product of its digits is 4032, while the sum is 29.

The square root of 1424729 is about 1193.6201238250. The cubic root of 1424729 is about 112.5237217467.

The spelling of 1424729 in words is "one million, four hundred twenty-four thousand, seven hundred twenty-nine".