620420514 has 32 divisors (see below), whose sum is σ = 1456434816. Its totient is φ = 172471680.

The previous prime is 620420501. The next prime is 620420557. The reversal of 620420514 is 415024026.

It is a super-2 number, since 2×620420514² = 769843228384048392, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198067 + ... + 201174.

It is an arithmetic number, because the mean of its divisors is an integer number (45513588).

Almost surely, 2^620420514 is an apocalyptic number.

620420514 is an abundant number, since it is smaller than the sum of its proper divisors (836014302).

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

620420514 is a wasteful number, since it uses less digits than its factorization.

620420514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399290.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 620420514 is about 24908.2418889812. The cubic root of 620420514 is about 852.8946359891.

The spelling of 620420514 in words is "six hundred twenty million, four hundred twenty thousand, five hundred fourteen".