620773452 has 72 divisors (see below), whose sum is σ = 1696509360. Its totient is φ = 190258560.

The previous prime is 620773409. The next prime is 620773463. The reversal of 620773452 is 254377026.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123427 + ... + 128357.

It is an arithmetic number, because the mean of its divisors is an integer number (23562630).

Almost surely, 2^620773452 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 620773452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (848254680).

620773452 is an abundant number, since it is smaller than the sum of its proper divisors (1075735908).

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

620773452 is a wasteful number, since it uses less digits than its factorization.

620773452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5223 (or 5218 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 620773452 is about 24915.3256450724. The cubic root of 620773452 is about 853.0563337721.

The spelling of 620773452 in words is "six hundred twenty million, seven hundred seventy-three thousand, four hundred fifty-two".