620662426 has 8 divisors (see below), whose sum is σ = 931280724. Its totient is φ = 310235520.

The previous prime is 620662423. The next prime is 620662481. The reversal of 620662426 is 624266026.

It can be written as a sum of positive squares in 2 ways, for example, as 595311201 + 25351225 = 24399^2 + 5035^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 620662391 and 620662400.

It is not an unprimeable number, because it can be changed into a prime (620662423) by changing a digit.

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, 39445 + ... + 52888.

Almost surely, 2^620662426 is an apocalyptic number.

620662426 is a deficient number, since it is larger than the sum of its proper divisors (310618298).

620662426 is a wasteful number, since it uses less digits than its factorization.

620662426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95696.

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 620662426 is about 24913.0974790370. The cubic root of 620662426 is about 853.0054740588.

The spelling of 620662426 in words is "six hundred twenty million, six hundred sixty-two thousand, four hundred twenty-six".