1642332460 has 24 divisors (see below), whose sum is σ = 3467960496. Its totient is φ = 653302080.

The previous prime is 1642332443. The next prime is 1642332487. The reversal of 1642332460 is 642332461.

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 7 ways as a sum of consecutive naturals, for example, 223222 + ... + 230461.

It is an arithmetic number, because the mean of its divisors is an integer number (144498354).

Almost surely, 2^1642332460 is an apocalyptic number.

1642332460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1642332460 is an abundant number, since it is smaller than the sum of its proper divisors (1825628036).

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

1642332460 is a wasteful number, since it uses less digits than its factorization.

1642332460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453873 (or 453871 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 1642332460 is about 40525.7012277394. The cubic root of 1642332460 is about 1179.8325099821.

Subtracting from 1642332460 its reverse (642332461), we obtain a palindrome (999999999).

The spelling of 1642332460 in words is "one billion, six hundred forty-two million, three hundred thirty-two thousand, four hundred sixty".