620426424 has 32 divisors (see below), whose sum is σ = 1642306320. Its totient is φ = 194643456.

The previous prime is 620426419. The next prime is 620426459. The reversal of 620426424 is 424624026.

It is a junction number, because it is equal to n+sod(n) for n = 620426391 and 620426400.

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 7 ways as a sum of consecutive naturals, for example, 759919 + ... + 760734.

Almost surely, 2^620426424 is an apocalyptic number.

It is an amenable number.

620426424 is an abundant number, since it is smaller than the sum of its proper divisors (1021879896).

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

620426424 is a wasteful number, since it uses less digits than its factorization.

620426424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520679 (or 1520675 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 620426424 is about 24908.3605241292. The cubic root of 620426424 is about 852.8973441476.

The spelling of 620426424 in words is "six hundred twenty million, four hundred twenty-six thousand, four hundred twenty-four".