1642469383 has 4 divisors (see below), whose sum is σ = 1728915160. Its totient is φ = 1556023608.

The previous prime is 1642469377. The next prime is 1642469393. The reversal of 1642469383 is 3839642461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3839642461 = 577 ⋅6654493.

It is a cyclic number.

It is not a de Polignac number, because 1642469383 - 2⁹ = 1642468871 is a prime.

It is a super-3 number, since 3×1642469383³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642469363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43222860 + ... + 43222897.

It is an arithmetic number, because the mean of its divisors is an integer number (432228790).

Almost surely, 2^1642469383 is an apocalyptic number.

1642469383 is a deficient number, since it is larger than the sum of its proper divisors (86445777).

1642469383 is an equidigital number, since it uses as much as digits as its factorization.

1642469383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86445776.

The product of its digits is 746496, while the sum is 46.

The square root of 1642469383 is about 40527.3905278887. The cubic root of 1642469383 is about 1179.8652970338.

The spelling of 1642469383 in words is "one billion, six hundred forty-two million, four hundred sixty-nine thousand, three hundred eighty-three".