620105604 has 12 divisors (see below), whose sum is σ = 1446913104. Its totient is φ = 206701864.

The previous prime is 620105593. The next prime is 620105609. The reversal of 620105604 is 406501026.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×620105604² = 769061920224409632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (620105609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25837722 + ... + 25837745.

It is an arithmetic number, because the mean of its divisors is an integer number (120576092).

Almost surely, 2^620105604 is an apocalyptic number.

It is an amenable number.

620105604 is an abundant number, since it is smaller than the sum of its proper divisors (826807500).

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

620105604 is a wasteful number, since it uses less digits than its factorization.

620105604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51675474 (or 51675472 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 620105604 is about 24901.9196850363. The cubic root of 620105604 is about 852.7503088761.

The spelling of 620105604 in words is "six hundred twenty million, one hundred five thousand, six hundred four".