628069376 has 132 divisors (see below), whose sum is σ = 1427684244. Its totient is φ = 275742720.

The previous prime is 628069367. The next prime is 628069381. The reversal of 628069376 is 673960826.

It can be written as a sum of positive squares in 2 ways, for example, as 476286976 + 151782400 = 21824^2 + 12320^2 .

It is a super-2 number, since 2×628069376² = 788942282138058752, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 628069376.

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, 4584380 + ... + 4584516.

Almost surely, 2^628069376 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 628069376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (713842122).

628069376 is an abundant number, since it is smaller than the sum of its proper divisors (799614868).

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

628069376 is a wasteful number, since it uses less digits than its factorization.

628069376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 47.

The square root of 628069376 is about 25061.3123359492. The cubic root of 628069376 is about 856.3853041656.

The spelling of 628069376 in words is "six hundred twenty-eight million, sixty-nine thousand, three hundred seventy-six".