1629016049 has 4 divisors (see below), whose sum is σ = 1637285364. Its totient is φ = 1620746736.

The previous prime is 1629016033. The next prime is 1629016069. The reversal of 1629016049 is 9406109261.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1079582449 + 549433600 = 32857^2 + 23440^2 .

It is a cyclic number.

It is not a de Polignac number, because 1629016049 - 2⁴ = 1629016033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1629016069) 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, 4134362 + ... + 4134755.

It is an arithmetic number, because the mean of its divisors is an integer number (409321341).

Almost surely, 2^1629016049 is an apocalyptic number.

It is an amenable number.

1629016049 is a deficient number, since it is larger than the sum of its proper divisors (8269315).

1629016049 is an equidigital number, since it uses as much as digits as its factorization.

1629016049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8269314.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 1629016049 is about 40361.0709595273. The cubic root of 1629016049 is about 1176.6350676278.

The spelling of 1629016049 in words is "one billion, six hundred twenty-nine million, sixteen thousand, forty-nine".