1629742 has 8 divisors (see below), whose sum is σ = 2529000. Its totient is φ = 786744.

The previous prime is 1629731. The next prime is 1629767. The reversal of 1629742 is 2479261.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13992 + ... + 14107.

It is an arithmetic number, because the mean of its divisors is an integer number (316125).

2^1629742 is an apocalyptic number.

1629742 is a deficient number, since it is larger than the sum of its proper divisors (899258).

1629742 is a wasteful number, since it uses less digits than its factorization.

1629742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28130.

The product of its digits is 6048, while the sum is 31.

The square root of 1629742 is about 1276.6134888838. The cubic root of 1629742 is about 117.6809825994.

The spelling of 1629742 in words is "one million, six hundred twenty-nine thousand, seven hundred forty-two".