618198742 has 32 divisors (see below), whose sum is σ = 1098100800. Its totient is φ = 255389568.

The previous prime is 618198739. The next prime is 618198743. The reversal of 618198742 is 247891816.

It is a super-2 number, since 2×618198742² = 764339369220765128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 618198692 and 618198701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618198743) 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 15 ways as a sum of consecutive naturals, for example, 449568 + ... + 450940.

It is an arithmetic number, because the mean of its divisors is an integer number (34315650).

Almost surely, 2^618198742 is an apocalyptic number.

618198742 is a deficient number, since it is larger than the sum of its proper divisors (479902058).

618198742 is a wasteful number, since it uses less digits than its factorization.

618198742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2520.

The product of its digits is 193536, while the sum is 46.

The square root of 618198742 is about 24863.6027558357. The cubic root of 618198742 is about 851.8753252368.

The spelling of 618198742 in words is "six hundred eighteen million, one hundred ninety-eight thousand, seven hundred forty-two".