629911390 has 16 divisors (see below), whose sum is σ = 1157965632. Its totient is φ = 246603424.

The previous prime is 629911339. The next prime is 629911393. The reversal of 629911390 is 93119926.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629911393) 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, 669649 + ... + 670588.

It is an arithmetic number, because the mean of its divisors is an integer number (72372852).

Almost surely, 2^629911390 is an apocalyptic number.

629911390 is a deficient number, since it is larger than the sum of its proper divisors (528054242).

629911390 is a wasteful number, since it uses less digits than its factorization.

629911390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340291.

The product of its (nonzero) digits is 26244, while the sum is 40.

The square root of 629911390 is about 25098.0355804991. The cubic root of 629911390 is about 857.2216948252.

It can be divided in two parts, 6299 and 11390, that added together give a square (17689 = 133²).

The spelling of 629911390 in words is "six hundred twenty-nine million, nine hundred eleven thousand, three hundred ninety".