620244024 has 64 divisors (see below), whose sum is σ = 1597276800. Its totient is φ = 200559744.

The previous prime is 620243983. The next prime is 620244047. The reversal of 620244024 is 420442026.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 620243985 and 620244003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 371239 + ... + 372905.

It is an arithmetic number, because the mean of its divisors is an integer number (24957450).

Almost surely, 2^620244024 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 620244024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (798638400).

620244024 is an abundant number, since it is smaller than the sum of its proper divisors (977032776).

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

620244024 is a wasteful number, since it uses less digits than its factorization.

620244024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132 (or 2128 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 620244024 is about 24904.6988337542. The cubic root of 620244024 is about 852.8137544759.

The spelling of 620244024 in words is "six hundred twenty million, two hundred forty-four thousand, twenty-four".