620212390 has 16 divisors (see below), whose sum is σ = 1275865632. Its totient is φ = 212644224.

The previous prime is 620212363. The next prime is 620212391. The reversal of 620212390 is 93212026.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620212391) 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, 4430019 + ... + 4430158.

It is an arithmetic number, because the mean of its divisors is an integer number (79741602).

Almost surely, 2^620212390 is an apocalyptic number.

620212390 is an abundant number, since it is smaller than the sum of its proper divisors (655653242).

620212390 is a wasteful number, since it uses less digits than its factorization.

620212390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8860191.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 620212390 is about 24904.0637246213. The cubic root of 620212390 is about 852.7992556830.

The spelling of 620212390 in words is "six hundred twenty million, two hundred twelve thousand, three hundred ninety".