629461690 has 32 divisors (see below), whose sum is σ = 1331116416. Its totient is φ = 211287360.

The previous prime is 629461687. The next prime is 629461747. The reversal of 629461690 is 96164926.

It is a happy number.

It is a super-2 number, since 2×629461690² = 792444038355312200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218662 + ... + 221521.

It is an arithmetic number, because the mean of its divisors is an integer number (41597388).

Almost surely, 2^629461690 is an apocalyptic number.

629461690 is an abundant number, since it is smaller than the sum of its proper divisors (701654726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

629461690 is a wasteful number, since it uses less digits than its factorization.

629461690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440214.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 629461690 is about 25089.0751124867. The cubic root of 629461690 is about 857.0176532334.

The spelling of 629461690 in words is "six hundred twenty-nine million, four hundred sixty-one thousand, six hundred ninety".