1601602956 has 30 divisors (see below), whose sum is σ = 4186907340. Its totient is φ = 533867544.

The previous prime is 1601602949. The next prime is 1601602957. The reversal of 1601602956 is 6592061061.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1601602956.

It is not an unprimeable number, because it can be changed into a prime (1601602957) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 2471286 + ... + 2471933.

It is an arithmetic number, because the mean of its divisors is an integer number (139563578).

Almost surely, 2^1601602956 is an apocalyptic number.

It is an amenable number.

1601602956 is an abundant number, since it is smaller than the sum of its proper divisors (2585304384).

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

1601602956 is a wasteful number, since it uses less digits than its factorization.

1601602956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4943235 (or 4943224 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 1601602956 is about 40020.0319340202. The cubic root of 1601602956 is about 1169.9975542355.

The spelling of 1601602956 in words is "one billion, six hundred one million, six hundred two thousand, nine hundred fifty-six".