628153630 has 32 divisors (see below), whose sum is σ = 1259647200. Its totient is φ = 223934592.

The previous prime is 628153619. The next prime is 628153657. The reversal of 628153630 is 36351826.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79540 + ... + 87079.

It is an arithmetic number, because the mean of its divisors is an integer number (39363975).

Almost surely, 2^628153630 is an apocalyptic number.

628153630 is an abundant number, since it is smaller than the sum of its proper divisors (631493570).

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

628153630 is a wasteful number, since it uses less digits than its factorization.

628153630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166668.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 628153630 is about 25062.9932370417. The cubic root of 628153630 is about 856.4235964647.

It can be divided in two parts, 6 and 28153630, that added together give a square (28153636 = 5306²).

The spelling of 628153630 in words is "six hundred twenty-eight million, one hundred fifty-three thousand, six hundred thirty".