628671030 has 64 divisors (see below), whose sum is σ = 1628303040. Its totient is φ = 154423296.

The previous prime is 628671011. The next prime is 628671061. The reversal of 628671030 is 30176826.

It is a super-2 number, since 2×628671030² = 790454527922521800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 628670982 and 628671000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 220494 + ... + 223326.

It is an arithmetic number, because the mean of its divisors is an integer number (25442235).

Almost surely, 2^628671030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 628671030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (814151520).

628671030 is an abundant number, since it is smaller than the sum of its proper divisors (999632010).

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

628671030 is a wasteful number, since it uses less digits than its factorization.

628671030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3425.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 628671030 is about 25073.3131037763. The cubic root of 628671030 is about 856.6586726953.

The spelling of 628671030 in words is "six hundred twenty-eight million, six hundred seventy-one thousand, thirty".