1620573032 has 32 divisors (see below), whose sum is σ = 3274992000. Its totient is φ = 747344064.

The previous prime is 1620573013. The next prime is 1620573043. The reversal of 1620573032 is 2303750261.

It is a junction number, because it is equal to n+sod(n) for n = 1620572986 and 1620573004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136469 + ... + 147867.

It is an arithmetic number, because the mean of its divisors is an integer number (102343500).

Almost surely, 2^1620573032 is an apocalyptic number.

It is an amenable number.

1620573032 is an abundant number, since it is smaller than the sum of its proper divisors (1654418968).

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

1620573032 is a wasteful number, since it uses less digits than its factorization.

1620573032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12785 (or 12781 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 1620573032 is about 40256.3415128598. The cubic root of 1620573032 is about 1174.5987540777.

The spelling of 1620573032 in words is "one billion, six hundred twenty million, five hundred seventy-three thousand, thirty-two".