629984436 has 24 divisors (see below), whose sum is σ = 1556432640. Its totient is φ = 197642112.

The previous prime is 629984431. The next prime is 629984461. The reversal of 629984436 is 634489926.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629984431) 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, 1543876 + ... + 1544283.

It is an arithmetic number, because the mean of its divisors is an integer number (64851360).

Almost surely, 2^629984436 is an apocalyptic number.

It is an amenable number.

629984436 is an abundant number, since it is smaller than the sum of its proper divisors (926448204).

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

629984436 is a wasteful number, since it uses less digits than its factorization.

629984436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3088183 (or 3088181 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 51.

The square root of 629984436 is about 25099.4907518061. The cubic root of 629984436 is about 857.2548286896.

The spelling of 629984436 in words is "six hundred twenty-nine million, nine hundred eighty-four thousand, four hundred thirty-six".