629441931 has 8 divisors (see below), whose sum is σ = 840155344. Its totient is φ = 419178240.

The previous prime is 629441929. The next prime is 629441933. The reversal of 629441931 is 139144926.

It is an interprime number because it is at equal distance from previous prime (629441929) and next prime (629441933).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 629441931 - 2¹ = 629441929 is a prime.

It is a super-2 number, since 2×629441931² = 792394289002017522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 629441931.

It is not an unprimeable number, because it can be changed into a prime (629441933) 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, 109150 + ... + 114771.

It is an arithmetic number, because the mean of its divisors is an integer number (105019418).

Almost surely, 2^629441931 is an apocalyptic number.

629441931 is a deficient number, since it is larger than the sum of its proper divisors (210713413).

629441931 is a wasteful number, since it uses less digits than its factorization.

629441931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224861.

The product of its digits is 46656, while the sum is 39.

The square root of 629441931 is about 25088.6813324256. The cubic root of 629441931 is about 857.0086857885.

The spelling of 629441931 in words is "six hundred twenty-nine million, four hundred forty-one thousand, nine hundred thirty-one".