629649946 has 16 divisors (see below), whose sum is σ = 967431168. Its totient is φ = 307188000.

The previous prime is 629649941. The next prime is 629649971. The reversal of 629649946 is 649946926.

It is not an unprimeable number, because it can be changed into a prime (629649941) 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, 95806 + ... + 102166.

It is an arithmetic number, because the mean of its divisors is an integer number (60464448).

Almost surely, 2^629649946 is an apocalyptic number.

629649946 is a deficient number, since it is larger than the sum of its proper divisors (337781222).

629649946 is a wasteful number, since it uses less digits than its factorization.

629649946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7557.

The product of its digits is 5038848, while the sum is 55.

The square root of 629649946 is about 25092.8265845042. The cubic root of 629649946 is about 857.1030821199.

The spelling of 629649946 in words is "six hundred twenty-nine million, six hundred forty-nine thousand, nine hundred forty-six".