620142624 has 36 divisors (see below), whose sum is σ = 1763531406. Its totient is φ = 206714112.

The previous prime is 620142617. The next prime is 620142697. The reversal of 620142624 is 426241026.

620142624 is a `hidden beast` number, since 6 + 20 + 14 + 2 + 624 = 666.

It can be written as a sum of positive squares in only one way, i.e., 608115600 + 12027024 = 24660^2 + 3468^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1076349 + ... + 1076924.

Almost surely, 2^620142624 is an apocalyptic number.

It is an amenable number.

620142624 is an abundant number, since it is smaller than the sum of its proper divisors (1143388782).

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

620142624 is a wasteful number, since it uses less digits than its factorization.

620142624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2153289 (or 2153278 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 620142624 is about 24902.6629901302. The cubic root of 620142624 is about 852.7672781299.

The spelling of 620142624 in words is "six hundred twenty million, one hundred forty-two thousand, six hundred twenty-four".