618762241 has 8 divisors (see below), whose sum is σ = 640440000. Its totient is φ = 597107280.

The previous prime is 618762239. The next prime is 618762269. The reversal of 618762241 is 142267816.

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 618762241 - 2¹ = 618762239 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 618762241.

It is not an unprimeable number, because it can be changed into a prime (618762271) 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, 64260 + ... + 73258.

It is an arithmetic number, because the mean of its divisors is an integer number (80055000).

Almost surely, 2^618762241 is an apocalyptic number.

It is an amenable number.

618762241 is a deficient number, since it is larger than the sum of its proper divisors (21677759).

618762241 is a wasteful number, since it uses less digits than its factorization.

618762241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11399.

The product of its digits is 32256, while the sum is 37.

The square root of 618762241 is about 24874.9319798065. The cubic root of 618762241 is about 852.1340797348.

The spelling of 618762241 in words is "six hundred eighteen million, seven hundred sixty-two thousand, two hundred forty-one".