620434 has 8 divisors (see below), whose sum is σ = 960768. Its totient is φ = 300180.

The previous prime is 620429. The next prime is 620437. The reversal of 620434 is 434026.

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

It is not an unprimeable number, because it can be changed into a prime (620437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4942 + ... + 5065.

It is an arithmetic number, because the mean of its divisors is an integer number (120096).

2⁶²⁰⁴³⁴ is an apocalyptic number.

620434 is a deficient number, since it is larger than the sum of its proper divisors (340334).

620434 is a wasteful number, since it uses less digits than its factorization.

620434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10040.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 620434 is about 787.6763294653. The cubic root of 620434 is about 85.2900815698.

The spelling of 620434 in words is "six hundred twenty thousand, four hundred thirty-four".