629047428 has 24 divisors (see below), whose sum is σ = 1474193280. Its totient is φ = 208765920.

The previous prime is 629047411. The next prime is 629047453. The reversal of 629047428 is 824740926.

It is a self number, because there is not a number n which added to its sum of digits gives 629047428.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111708 + ... + 117203.

It is an arithmetic number, because the mean of its divisors is an integer number (61424720).

Almost surely, 2^629047428 is an apocalyptic number.

It is an amenable number.

629047428 is an abundant number, since it is smaller than the sum of its proper divisors (845145852).

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

629047428 is a wasteful number, since it uses less digits than its factorization.

629047428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229147 (or 229145 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 629047428 is about 25080.8179292462. The cubic root of 629047428 is about 856.8296048499.

The spelling of 629047428 in words is "six hundred twenty-nine million, forty-seven thousand, four hundred twenty-eight".