1629758949 has 16 divisors (see below), whose sum is σ = 2674476672. Its totient is φ = 859652928.

The previous prime is 1629758843. The next prime is 1629758959. The reversal of 1629758949 is 9498579261.

It is not a de Polignac number, because 1629758949 - 2⁷ = 1629758821 is a prime.

It is a super-2 number, since 2×1629758949² = 5312228463691169202, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1629758892 and 1629758901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1629758959) 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 15 ways as a sum of consecutive naturals, for example, 2984634 + ... + 2985179.

It is an arithmetic number, because the mean of its divisors is an integer number (167154792).

Almost surely, 2^1629758949 is an apocalyptic number.

It is an amenable number.

1629758949 is a deficient number, since it is larger than the sum of its proper divisors (1044717723).

1629758949 is a wasteful number, since it uses less digits than its factorization.

1629758949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5969836.

The product of its digits is 9797760, while the sum is 60.

The square root of 1629758949 is about 40370.2730855267. The cubic root of 1629758949 is about 1176.8139055112.

The spelling of 1629758949 in words is "one billion, six hundred twenty-nine million, seven hundred fifty-eight thousand, nine hundred forty-nine".