629738026 has 4 divisors (see below), whose sum is σ = 944607042. Its totient is φ = 314869012.

The previous prime is 629738003. The next prime is 629738027. The reversal of 629738026 is 620837926.

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

It can be written as a sum of positive squares in only one way, i.e., 560032225 + 69705801 = 23665^2 + 8349^2 .

It is not an unprimeable number, because it can be changed into a prime (629738027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157434505 + ... + 157434508.

Almost surely, 2^629738026 is an apocalyptic number.

629738026 is a deficient number, since it is larger than the sum of its proper divisors (314869016).

629738026 is a wasteful number, since it uses less digits than its factorization.

629738026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314869015.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 629738026 is about 25094.5816063946. The cubic root of 629738026 is about 857.1430461878.

The spelling of 629738026 in words is "six hundred twenty-nine million, seven hundred thirty-eight thousand, twenty-six".