620311092 has 24 divisors (see below), whose sum is σ = 1448151936. Its totient is φ = 206661888.

The previous prime is 620311091. The next prime is 620311117. The reversal of 620311092 is 290113026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620311091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12228 + ... + 37284.

It is an arithmetic number, because the mean of its divisors is an integer number (60339664).

Almost surely, 2^620311092 is an apocalyptic number.

It is an amenable number.

620311092 is an abundant number, since it is smaller than the sum of its proper divisors (827840844).

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

620311092 is a wasteful number, since it uses less digits than its factorization.

620311092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27127 (or 27125 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 620311092 is about 24906.0452902503. The cubic root of 620311092 is about 852.8444920831.

The spelling of 620311092 in words is "six hundred twenty million, three hundred eleven thousand, ninety-two".