620020746 has 12 divisors (see below), whose sum is σ = 1343378322. Its totient is φ = 206673576.

The previous prime is 620020721. The next prime is 620020769. The reversal of 620020746 is 647020026.

It can be written as a sum of positive squares in only one way, i.e., 538750521 + 81270225 = 23211^2 + 9015^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17222781 + ... + 17222816.

Almost surely, 2^620020746 is an apocalyptic number.

620020746 is an abundant number, since it is smaller than the sum of its proper divisors (723357576).

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

620020746 is a wasteful number, since it uses less digits than its factorization.

620020746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34445605 (or 34445602 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 620020746 is about 24900.2157821976. The cubic root of 620020746 is about 852.7114090573.

The spelling of 620020746 in words is "six hundred twenty million, twenty thousand, seven hundred forty-six".