1429631 has 4 divisors (see below), whose sum is σ = 1633872. Its totient is φ = 1225392.

The previous prime is 1429619. The next prime is 1429633. The reversal of 1429631 is 1369241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1369241 = 439 ⋅3119.

It is not a de Polignac number, because 1429631 - 2⁶ = 1429567 is a prime.

It is a super-2 number, since 2×1429631² = 4087689592322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1429631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1429633) 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, 102110 + ... + 102123.

It is an arithmetic number, because the mean of its divisors is an integer number (408468).

2^1429631 is an apocalyptic number.

1429631 is a deficient number, since it is larger than the sum of its proper divisors (204241).

1429631 is an equidigital number, since it uses as much as digits as its factorization.

1429631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204240.

The product of its digits is 1296, while the sum is 26.

The square root of 1429631 is about 1195.6717777049. The cubic root of 1429631 is about 112.6526257648.

The spelling of 1429631 in words is "one million, four hundred twenty-nine thousand, six hundred thirty-one".