1641956732 has 12 divisors (see below), whose sum is σ = 3094457016. Its totient is φ = 757826160.

The previous prime is 1641956731. The next prime is 1641956737. The reversal of 1641956732 is 2376591461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641956731) 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 3 ways as a sum of consecutive naturals, for example, 15787994 + ... + 15788097.

It is an arithmetic number, because the mean of its divisors is an integer number (257871418).

Almost surely, 2^1641956732 is an apocalyptic number.

It is an amenable number.

1641956732 is a deficient number, since it is larger than the sum of its proper divisors (1452500284).

1641956732 is a wasteful number, since it uses less digits than its factorization.

1641956732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31576108 (or 31576106 counting only the distinct ones).

The product of its digits is 272160, while the sum is 44.

The square root of 1641956732 is about 40521.0652870825. The cubic root of 1641956732 is about 1179.7425302471.

The spelling of 1641956732 in words is "one billion, six hundred forty-one million, nine hundred fifty-six thousand, seven hundred thirty-two".