1642259341 has 4 divisors (see below), whose sum is σ = 1642341532. Its totient is φ = 1642177152.

The previous prime is 1642259329. The next prime is 1642259351. The reversal of 1642259341 is 1439522461.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 854334441 + 787924900 = 29229^2 + 28070^2 .

It is a cyclic number.

It is not a de Polignac number, because 1642259341 - 2⁵ = 1642259309 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1642259341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642259321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10315 + ... + 58231.

It is an arithmetic number, because the mean of its divisors is an integer number (410585383).

Almost surely, 2^1642259341 is an apocalyptic number.

It is an amenable number.

1642259341 is a deficient number, since it is larger than the sum of its proper divisors (82191).

1642259341 is an equidigital number, since it uses as much as digits as its factorization.

1642259341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82190.

The product of its digits is 51840, while the sum is 37.

The square root of 1642259341 is about 40524.7990864853. The cubic root of 1642259341 is about 1179.8150004430.

The spelling of 1642259341 in words is "one billion, six hundred forty-two million, two hundred fifty-nine thousand, three hundred forty-one".