628701390 has 48 divisors (see below), whose sum is σ = 1687360896. Its totient is φ = 162244800.

The previous prime is 628701383. The next prime is 628701397. The reversal of 628701390 is 93107826.

It is an interprime number because it is at equal distance from previous prime (628701383) and next prime (628701397).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628701397) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109881 + ... + 115460.

It is an arithmetic number, because the mean of its divisors is an integer number (35153352).

Almost surely, 2^628701390 is an apocalyptic number.

628701390 is an abundant number, since it is smaller than the sum of its proper divisors (1058659506).

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

628701390 is a wasteful number, since it uses less digits than its factorization.

628701390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225385 (or 225382 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 628701390 is about 25073.9185210449. The cubic root of 628701390 is about 856.6724624928.

The spelling of 628701390 in words is "six hundred twenty-eight million, seven hundred one thousand, three hundred ninety".