620626944 has 352 divisors, whose sum is σ = 2096128000. Its totient is φ = 162570240.

The previous prime is 620626927. The next prime is 620626967. The reversal of 620626944 is 449626026.

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, 20020209 + ... + 20020239.

Almost surely, 2^620626944 is an apocalyptic number.

620626944 is a gapful number since it is divisible by the number (64) 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 620626944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1048064000).

620626944 is an abundant number, since it is smaller than the sum of its proper divisors (1475501056).

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

620626944 is a wasteful number, since it uses less digits than its factorization.

620626944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 62 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 620626944 is about 24912.3853534743. The cubic root of 620626944 is about 852.9892188903.

It can be divided in two parts, 62062 and 6944, that added together give a triangular number (69006 = T₃₇₁).

The spelling of 620626944 in words is "six hundred twenty million, six hundred twenty-six thousand, nine hundred forty-four".