628054452 has 96 divisors (see below), whose sum is σ = 1675416960. Its totient is φ = 203374080.

The previous prime is 628054439. The next prime is 628054457. The reversal of 628054452 is 254450826.

It is a happy number.

628054452 is a `hidden beast` number, since 62 + 8 + 0 + 544 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628054457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 646327 + ... + 647297.

It is an arithmetic number, because the mean of its divisors is an integer number (17452260).

Almost surely, 2^628054452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 628054452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (837708480).

628054452 is an abundant number, since it is smaller than the sum of its proper divisors (1047362508).

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

628054452 is a wasteful number, since it uses less digits than its factorization.

628054452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150 (or 1142 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The square root of 628054452 is about 25061.0145844098. The cubic root of 628054452 is about 856.3785210532.

The spelling of 628054452 in words is "six hundred twenty-eight million, fifty-four thousand, four hundred fifty-two".