620628744 has 64 divisors (see below), whose sum is σ = 1570947840. Its totient is φ = 204310080.

The previous prime is 620628733. The next prime is 620628763. The reversal of 620628744 is 447826026.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 964887 + ... + 965529.

It is an arithmetic number, because the mean of its divisors is an integer number (24546060).

Almost surely, 2^620628744 is an apocalyptic number.

It is an amenable number.

620628744 is an abundant number, since it is smaller than the sum of its proper divisors (950319096).

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

620628744 is a wasteful number, since it uses less digits than its factorization.

620628744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090 (or 1086 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 39.

The square root of 620628744 is about 24912.4214800569. The cubic root of 620628744 is about 852.9900435290.

The spelling of 620628744 in words is "six hundred twenty million, six hundred twenty-eight thousand, seven hundred forty-four".