629138470 has 16 divisors (see below), whose sum is σ = 1171499760. Its totient is φ = 242977504.

The previous prime is 629138437. The next prime is 629138473. The reversal of 629138470 is 74831926.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629138473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1084432 + ... + 1085011.

It is an arithmetic number, because the mean of its divisors is an integer number (73218735).

Almost surely, 2^629138470 is an apocalyptic number.

629138470 is a deficient number, since it is larger than the sum of its proper divisors (542361290).

629138470 is a wasteful number, since it uses less digits than its factorization.

629138470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169479.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 629138470 is about 25082.6328362873. The cubic root of 629138470 is about 856.8709391566.

The spelling of 629138470 in words is "six hundred twenty-nine million, one hundred thirty-eight thousand, four hundred seventy".