1642344142 has 8 divisors (see below), whose sum is σ = 2465990136. Its totient is φ = 820347432.

The previous prime is 1642344103. The next prime is 1642344161. The reversal of 1642344142 is 2414432461.

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

It is a super-3 number, since 3×1642344142³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409828 + ... + 413815.

It is an arithmetic number, because the mean of its divisors is an integer number (308248767).

Almost surely, 2^1642344142 is an apocalyptic number.

1642344142 is a deficient number, since it is larger than the sum of its proper divisors (823645994).

1642344142 is an equidigital number, since it uses as much as digits as its factorization.

1642344142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824642.

The product of its digits is 18432, while the sum is 31.

The square root of 1642344142 is about 40525.8453582402. The cubic root of 1642344142 is about 1179.8353073798.

The spelling of 1642344142 in words is "one billion, six hundred forty-two million, three hundred forty-four thousand, one hundred forty-two".