1629449285 has 8 divisors (see below), whose sum is σ = 1956335136. Its totient is φ = 1302895440.

The previous prime is 1629449281. The next prime is 1629449293. The reversal of 1629449285 is 5829449261.

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

It is not a de Polignac number, because 1629449285 - 2² = 1629449281 is a prime.

It is a super-2 number, since 2×1629449285² = 5310209944774022450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1629449281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72071 + ... + 91940.

It is an arithmetic number, because the mean of its divisors is an integer number (244541892).

Almost surely, 2^1629449285 is an apocalyptic number.

It is an amenable number.

1629449285 is a deficient number, since it is larger than the sum of its proper divisors (326885851).

1629449285 is a wasteful number, since it uses less digits than its factorization.

1629449285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166003.

The product of its digits is 1244160, while the sum is 50.

The square root of 1629449285 is about 40366.4376060113. The cubic root of 1629449285 is about 1176.7393668840.

The spelling of 1629449285 in words is "one billion, six hundred twenty-nine million, four hundred forty-nine thousand, two hundred eighty-five".