1642332461 has 24 divisors (see below), whose sum is σ = 2094862176. Its totient is φ = 1273161120.

The previous prime is 1642332443. The next prime is 1642332487.

1642332461 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1642332461 - 2¹⁸ = 1642070317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642332161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98450 + ... + 113916.

It is an arithmetic number, because the mean of its divisors is an integer number (87285924).

Almost surely, 2^1642332461 is an apocalyptic number.

1642332461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1642332461 is a deficient number, since it is larger than the sum of its proper divisors (452529715).

1642332461 is a wasteful number, since it uses less digits than its factorization.

1642332461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15689 (or 15682 counting only the distinct ones).

The product of its digits is 20736, while the sum is 32.

The square root of 1642332461 is about 40525.7012400773. The cubic root of 1642332461 is about 1179.8325102216.

It can be divided in two parts, 16423 and 32461, that added together give a palindrome (48884).

The spelling of 1642332461 in words is "one billion, six hundred forty-two million, three hundred thirty-two thousand, four hundred sixty-one".