1642019323 has 8 divisors (see below), whose sum is σ = 1877678048. Its totient is φ = 1406631744.

The previous prime is 1642019303. The next prime is 1642019329. The reversal of 1642019323 is 3239102461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1642019323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1642019329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54636 + ... + 79177.

It is an arithmetic number, because the mean of its divisors is an integer number (234709756).

Almost surely, 2^1642019323 is an apocalyptic number.

1642019323 is a deficient number, since it is larger than the sum of its proper divisors (235658725).

1642019323 is a wasteful number, since it uses less digits than its factorization.

1642019323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135573.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 1642019323 is about 40521.8376064067. The cubic root of 1642019323 is about 1179.7575205581.

The spelling of 1642019323 in words is "one billion, six hundred forty-two million, nineteen thousand, three hundred twenty-three".