620071430 has 32 divisors (see below), whose sum is σ = 1289221920. Its totient is φ = 212216320.

The previous prime is 620071391. The next prime is 620071451. The reversal of 620071430 is 34170026.

It is a junction number, because it is equal to n+sod(n) for n = 620071396 and 620071405.

It is a congruent number.

It is an unprimeable number.

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, 163925 + ... + 167664.

It is an arithmetic number, because the mean of its divisors is an integer number (40288185).

Almost surely, 2^620071430 is an apocalyptic number.

620071430 is an abundant number, since it is smaller than the sum of its proper divisors (669150490).

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

620071430 is a wasteful number, since it uses less digits than its factorization.

620071430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331624.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 620071430 is about 24901.2335035837. The cubic root of 620071430 is about 852.7346435742.

The spelling of 620071430 in words is "six hundred twenty million, seventy-one thousand, four hundred thirty".