620523072 has 224 divisors, whose sum is σ = 2051669760. Its totient is φ = 182476800.

The previous prime is 620523017. The next prime is 620523077. The reversal of 620523072 is 270325026.

620523072 is a `hidden beast` number, since 620 + 5 + 2 + 30 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (620523077) 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, 516072 + ... + 517272.

It is an arithmetic number, because the mean of its divisors is an integer number (9159240).

Almost surely, 2^620523072 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 620523072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1025834880).

620523072 is an abundant number, since it is smaller than the sum of its proper divisors (1431146688).

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

620523072 is a wasteful number, since it uses less digits than its factorization.

620523072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258 (or 1242 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 620523072 is about 24910.3005200660. The cubic root of 620523072 is about 852.9416290348.

Adding to 620523072 its reverse (270325026), we get a palindrome (890848098).

The spelling of 620523072 in words is "six hundred twenty million, five hundred twenty-three thousand, seventy-two".