4242618397 has 4 divisors (see below), whose sum is σ = 4254637500. Its totient is φ = 4230599296.

The previous prime is 4242618389. The next prime is 4242618409. The reversal of 4242618397 is 7938162424.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2226518596 + 2016099801 = 47186^2 + 44901^2 .

It is a cyclic number.

It is not a de Polignac number, because 4242618397 - 2³ = 4242618389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4242618797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6009022 + ... + 6009727.

It is an arithmetic number, because the mean of its divisors is an integer number (1063659375).

Almost surely, 2^4242618397 is an apocalyptic number.

It is an amenable number.

4242618397 is a deficient number, since it is larger than the sum of its proper divisors (12019103).

4242618397 is a wasteful number, since it uses less digits than its factorization.

4242618397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12019102.

The product of its digits is 580608, while the sum is 46.

The square root of 4242618397 is about 65135.3851374197. The cubic root of 4242618397 is about 1618.8675717648.

The spelling of 4242618397 in words is "four billion, two hundred forty-two million, six hundred eighteen thousand, three hundred ninety-seven".