620751488 has 64 divisors (see below), whose sum is σ = 1426057920. Its totient is φ = 263639040.

The previous prime is 620751473. The next prime is 620751493. The reversal of 620751488 is 884157026.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98183 + ... + 104313.

It is an arithmetic number, because the mean of its divisors is an integer number (22282155).

Almost surely, 2^620751488 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 620751488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (713028960).

620751488 is an abundant number, since it is smaller than the sum of its proper divisors (805306432).

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

620751488 is a wasteful number, since it uses less digits than its factorization.

620751488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6265 (or 6253 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 620751488 is about 24914.8848682871. The cubic root of 620751488 is about 853.0462728016.

The spelling of 620751488 in words is "six hundred twenty million, seven hundred fifty-one thousand, four hundred eighty-eight".