620826442 has 16 divisors (see below), whose sum is σ = 982653120. Its totient is φ = 293578912.

The previous prime is 620826433. The next prime is 620826443. The reversal of 620826442 is 244628026.

It is a junction number, because it is equal to n+sod(n) for n = 620826398 and 620826407.

It is not an unprimeable number, because it can be changed into a prime (620826443) 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, 71728 + ... + 79915.

It is an arithmetic number, because the mean of its divisors is an integer number (61415820).

Almost surely, 2^620826442 is an apocalyptic number.

620826442 is a deficient number, since it is larger than the sum of its proper divisors (361826678).

620826442 is a wasteful number, since it uses less digits than its factorization.

620826442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151757.

The product of its (nonzero) digits is 36864, while the sum is 34.

The square root of 620826442 is about 24916.3890240942. The cubic root of 620826442 is about 853.0806057342.

The spelling of 620826442 in words is "six hundred twenty million, eight hundred twenty-six thousand, four hundred forty-two".