1642860741 has 8 divisors (see below), whose sum is σ = 2198625120. Its totient is φ = 1091168432.

The previous prime is 1642860731. The next prime is 1642860757. The reversal of 1642860741 is 1470682461.

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

It is a cyclic number.

It is not a de Polignac number, because 1642860741 - 2¹⁰ = 1642859717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1642860741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642860731) 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 7 ways as a sum of consecutive naturals, for example, 1017075 + ... + 1018688.

It is an arithmetic number, because the mean of its divisors is an integer number (274828140).

Almost surely, 2^1642860741 is an apocalyptic number.

It is an amenable number.

1642860741 is a deficient number, since it is larger than the sum of its proper divisors (555764379).

1642860741 is a wasteful number, since it uses less digits than its factorization.

1642860741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036035.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 1642860741 is about 40532.2185551198. The cubic root of 1642860741 is about 1179.9590000597.

The spelling of 1642860741 in words is "one billion, six hundred forty-two million, eight hundred sixty thousand, seven hundred forty-one".