620436 has 24 divisors (see below), whose sum is σ = 1461600. Its totient is φ = 204832.

The previous prime is 620429. The next prime is 620437. The reversal of 620436 is 634026.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1615 + ... + 1961.

It is an arithmetic number, because the mean of its divisors is an integer number (60900).

2⁶²⁰⁴³⁶ is an apocalyptic number.

It is an amenable number.

620436 is an abundant number, since it is smaller than the sum of its proper divisors (841164).

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

620436 is a wasteful number, since it uses less digits than its factorization.

620436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503 (or 501 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 620436 is about 787.6775990213. The cubic root of 620436 is about 85.2901732153.

The spelling of 620436 in words is "six hundred twenty thousand, four hundred thirty-six".