628479418 has 8 divisors (see below), whose sum is σ = 1077393312. Its totient is φ = 269348316.

The previous prime is 628479407. The next prime is 628479421. The reversal of 628479418 is 814974826.

It is a happy number.

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, 22445680 + ... + 22445707.

It is an arithmetic number, because the mean of its divisors is an integer number (134674164).

Almost surely, 2^628479418 is an apocalyptic number.

628479418 is a deficient number, since it is larger than the sum of its proper divisors (448913894).

628479418 is a wasteful number, since it uses less digits than its factorization.

628479418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44891396.

The product of its digits is 774144, while the sum is 49.

The square root of 628479418 is about 25069.4917778562. The cubic root of 628479418 is about 856.5716304781.

The spelling of 628479418 in words is "six hundred twenty-eight million, four hundred seventy-nine thousand, four hundred eighteen".