628343454 has 16 divisors (see below), whose sum is σ = 1256935680. Its totient is φ = 209406360.

The previous prime is 628343411. The next prime is 628343473. The reversal of 628343454 is 454343826.

It is a Curzon number.

It is a congruent number.

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, 46309 + ... + 58319.

It is an arithmetic number, because the mean of its divisors is an integer number (78558480).

Almost surely, 2^628343454 is an apocalyptic number.

628343454 is an abundant number, since it is smaller than the sum of its proper divisors (628592226).

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

628343454 is a wasteful number, since it uses less digits than its factorization.

628343454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20735.

The product of its digits is 276480, while the sum is 39.

The square root of 628343454 is about 25066.7798889287. The cubic root of 628343454 is about 856.5098563498.

The spelling of 628343454 in words is "six hundred twenty-eight million, three hundred forty-three thousand, four hundred fifty-four".