628454194 has 16 divisors (see below), whose sum is σ = 959587200. Its totient is φ = 308602224.

The previous prime is 628454131. The next prime is 628454207. The reversal of 628454194 is 491454826.

It is a self number, because there is not a number n which added to its sum of digits gives 628454194.

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, 166759 + ... + 170485.

It is an arithmetic number, because the mean of its divisors is an integer number (59974200).

Almost surely, 2^628454194 is an apocalyptic number.

628454194 is a deficient number, since it is larger than the sum of its proper divisors (331133006).

628454194 is a wasteful number, since it uses less digits than its factorization.

628454194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5217.

The product of its digits is 276480, while the sum is 43.

The square root of 628454194 is about 25068.9886912097. The cubic root of 628454194 is about 856.5601708337.

The spelling of 628454194 in words is "six hundred twenty-eight million, four hundred fifty-four thousand, one hundred ninety-four".