628443626 has 8 divisors (see below), whose sum is σ = 942884544. Its totient is φ = 314148780.

The previous prime is 628443619. The next prime is 628443653. The reversal of 628443626 is 626344826.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25040 + ... + 43403.

It is an arithmetic number, because the mean of its divisors is an integer number (117860568).

Almost surely, 2^628443626 is an apocalyptic number.

628443626 is a deficient number, since it is larger than the sum of its proper divisors (314440918).

628443626 is a wasteful number, since it uses less digits than its factorization.

628443626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73036.

The product of its digits is 331776, while the sum is 41.

The square root of 628443626 is about 25068.7779119765. Note that the first 3 decimals coincide. The cubic root of 628443626 is about 856.5553695405. Note that the first 3 decimals are identical.

The spelling of 628443626 in words is "six hundred twenty-eight million, four hundred forty-three thousand, six hundred twenty-six".