1729628 has 12 divisors (see below), whose sum is σ = 3037440. Its totient is φ = 861792.

The previous prime is 1729621. The next prime is 1729633. The reversal of 1729628 is 8269271.

It is a happy number.

It is a super-2 number, since 2×1729628² = 5983226036768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1729621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 968 + ... + 2096.

It is an arithmetic number, because the mean of its divisors is an integer number (253120).

2^1729628 is an apocalyptic number.

It is an amenable number.

1729628 is a deficient number, since it is larger than the sum of its proper divisors (1307812).

1729628 is a wasteful number, since it uses less digits than its factorization.

1729628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516 (or 1514 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 1729628 is about 1315.1532230124. The cubic root of 1729628 is about 120.0376733566.

The spelling of 1729628 in words is "one million, seven hundred twenty-nine thousand, six hundred twenty-eight".