620040068 has 12 divisors (see below), whose sum is σ = 1122486540. Its totient is φ = 299329632.

The previous prime is 620040067. The next prime is 620040119. The reversal of 620040068 is 860040026.

It can be written as a sum of positive squares in 2 ways, for example, as 216913984 + 403126084 = 14728^2 + 20078^2 .

It is not an unprimeable number, because it can be changed into a prime (620040067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2672471 + ... + 2672702.

It is an arithmetic number, because the mean of its divisors is an integer number (93540545).

Almost surely, 2^620040068 is an apocalyptic number.

It is an amenable number.

620040068 is a deficient number, since it is larger than the sum of its proper divisors (502446472).

620040068 is a wasteful number, since it uses less digits than its factorization.

620040068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5345206 (or 5345204 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 620040068 is about 24900.6037677804. The cubic root of 620040068 is about 852.7202667818.

The spelling of 620040068 in words is "six hundred twenty million, forty thousand, sixty-eight".