1729629442 has 8 divisors (see below), whose sum is σ = 2629984716. Its totient is φ = 852967872.

The previous prime is 1729629437. The next prime is 1729629449. The reversal of 1729629442 is 2449269271.

It can be written as a sum of positive squares in 2 ways, for example, as 1685020401 + 44609041 = 41049^2 + 6679^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1729629392 and 1729629401.

It is not an unprimeable number, because it can be changed into a prime (1729629449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5923243 + ... + 5923534.

Almost surely, 2^1729629442 is an apocalyptic number.

1729629442 is a deficient number, since it is larger than the sum of its proper divisors (900355274).

1729629442 is a wasteful number, since it uses less digits than its factorization.

1729629442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11846852.

The product of its digits is 435456, while the sum is 46.

The square root of 1729629442 is about 41588.8139047028. The cubic root of 1729629442 is about 1200.3770671527.

The spelling of 1729629442 in words is "one billion, seven hundred twenty-nine million, six hundred twenty-nine thousand, four hundred forty-two".