628268132 has 24 divisors (see below), whose sum is σ = 1107632064. Its totient is φ = 311811552.

The previous prime is 628268107. The next prime is 628268153. The reversal of 628268132 is 231862826.

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, 339233 + ... + 341079.

It is an arithmetic number, because the mean of its divisors is an integer number (46151336).

Almost surely, 2^628268132 is an apocalyptic number.

It is an amenable number.

628268132 is a deficient number, since it is larger than the sum of its proper divisors (479363932).

628268132 is a wasteful number, since it uses less digits than its factorization.

628268132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2435 (or 2433 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The square root of 628268132 is about 25065.2774171761. The cubic root of 628268132 is about 856.4756305809.

The spelling of 628268132 in words is "six hundred twenty-eight million, two hundred sixty-eight thousand, one hundred thirty-two".