620402486 has 8 divisors (see below), whose sum is σ = 1015204104. Its totient is φ = 282001120.

The previous prime is 620402479. The next prime is 620402527. The reversal of 620402486 is 684204026.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 14100035 + ... + 14100078.

It is an arithmetic number, because the mean of its divisors is an integer number (126900513).

Almost surely, 2^620402486 is an apocalyptic number.

620402486 is a deficient number, since it is larger than the sum of its proper divisors (394801618).

620402486 is a wasteful number, since it uses less digits than its factorization.

620402486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28200126.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 620402486 is about 24907.8799981050. The cubic root of 620402486 is about 852.8863748538.

The spelling of 620402486 in words is "six hundred twenty million, four hundred two thousand, four hundred eighty-six".