620025460 has 12 divisors (see below), whose sum is σ = 1302053508. Its totient is φ = 248010176.

The previous prime is 620025449. The next prime is 620025491. The reversal of 620025460 is 64520026.

It can be written as a sum of positive squares in 2 ways, for example, as 126652516 + 493372944 = 11254^2 + 22212^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15500617 + ... + 15500656.

It is an arithmetic number, because the mean of its divisors is an integer number (108504459).

Almost surely, 2^620025460 is an apocalyptic number.

It is an amenable number.

620025460 is an abundant number, since it is smaller than the sum of its proper divisors (682028048).

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

620025460 is a wasteful number, since it uses less digits than its factorization.

620025460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31001282 (or 31001280 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 620025460 is about 24900.3104398319. The cubic root of 620025460 is about 852.7135700987.

Adding to 620025460 its reverse (64520026), we get a palindrome (684545486).

The spelling of 620025460 in words is "six hundred twenty million, twenty-five thousand, four hundred sixty".