628854720 has 224 divisors, whose sum is σ = 2204435520. Its totient is φ = 150896640.

The previous prime is 628854713. The next prime is 628854727. The reversal of 628854720 is 27458826.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (628854713) and next prime (628854727).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628854727) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 511066 + ... + 512294.

It is an arithmetic number, because the mean of its divisors is an integer number (9841230).

Almost surely, 2^628854720 is an apocalyptic number.

628854720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 628854720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1102217760).

628854720 is an abundant number, since it is smaller than the sum of its proper divisors (1575580800).

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

628854720 is a wasteful number, since it uses less digits than its factorization.

628854720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303 (or 1293 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 628854720 is about 25076.9758942341. The cubic root of 628854720 is about 856.7420996390.

The spelling of 628854720 in words is "six hundred twenty-eight million, eight hundred fifty-four thousand, seven hundred twenty".