1640032324 has 48 divisors (see below), whose sum is σ = 3316819968. Its totient is φ = 695042208.

The previous prime is 1640032297. The next prime is 1640032333. The reversal of 1640032324 is 4232300461.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1035237 + ... + 1036819.

It is an arithmetic number, because the mean of its divisors is an integer number (69100416).

Almost surely, 2^1640032324 is an apocalyptic number.

1640032324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1640032324 is an abundant number, since it is smaller than the sum of its proper divisors (1676787644).

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

1640032324 is a wasteful number, since it uses less digits than its factorization.

1640032324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984 (or 1982 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1640032324 is about 40497.3125528102. The cubic root of 1640032324 is about 1179.2814556756.

Adding to 1640032324 its reverse (4232300461), we get a palindrome (5872332785).

The spelling of 1640032324 in words is "one billion, six hundred forty million, thirty-two thousand, three hundred twenty-four".