1620707052 has 24 divisors (see below), whose sum is σ = 3946070016. Its totient is φ = 516747088.

The previous prime is 1620707047. The next prime is 1620707059. The reversal of 1620707052 is 2507070261.

It is not an unprimeable number, because it can be changed into a prime (1620707059) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2935788 + ... + 2936339.

It is an arithmetic number, because the mean of its divisors is an integer number (164419584).

Almost surely, 2^1620707052 is an apocalyptic number.

1620707052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1620707052 is an abundant number, since it is smaller than the sum of its proper divisors (2325362964).

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

1620707052 is a wasteful number, since it uses less digits than its factorization.

1620707052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5872157 (or 5872155 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 1620707052 is about 40258.0060609067. The cubic root of 1620707052 is about 1174.6311326217.

The spelling of 1620707052 in words is "one billion, six hundred twenty million, seven hundred seven thousand, fifty-two".