628380 has 36 divisors (see below), whose sum is σ = 1906632. Its totient is φ = 167520.

The previous prime is 628379. The next prime is 628391. The reversal of 628380 is 83826.

628380 is a `hidden beast` number, since 628 + 38 + 0 = 666.

628380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×628380² = 789722848800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1566 + ... + 1925.

It is an arithmetic number, because the mean of its divisors is an integer number (52962).

2⁶²⁸³⁸⁰ is an apocalyptic number.

628380 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

628380 is an abundant number, since it is smaller than the sum of its proper divisors (1278252).

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

628380 is a wasteful number, since it uses less digits than its factorization.

628380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3506 (or 3501 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 628380 is about 792.7042323591. The cubic root of 628380 is about 85.6526461601.

The spelling of 628380 in words is "six hundred twenty-eight thousand, three hundred eighty".