620270130 has 32 divisors (see below), whose sum is σ = 1516739904. Its totient is φ = 162284096.

The previous prime is 620270113. The next prime is 620270137. The reversal of 620270130 is 31072026.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 620270097 and 620270106.

It is not an unprimeable number, because it can be changed into a prime (620270137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193464 + ... + 196643.

It is an arithmetic number, because the mean of its divisors is an integer number (47398122).

Almost surely, 2^620270130 is an apocalyptic number.

620270130 is an abundant number, since it is smaller than the sum of its proper divisors (896469774).

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

620270130 is a wasteful number, since it uses less digits than its factorization.

620270130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390170.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 620270130 is about 24905.2229462015. Note that the first 3 decimals coincide. The cubic root of 620270130 is about 852.8257192525.

The spelling of 620270130 in words is "six hundred twenty million, two hundred seventy thousand, one hundred thirty".