1618336742 has 16 divisors (see below), whose sum is σ = 2787566400. Its totient is φ = 696891240.

The previous prime is 1618336729. The next prime is 1618336813. The reversal of 1618336742 is 2476338161.

It is a self number, because there is not a number n which added to its sum of digits gives 1618336742.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1935392 + ... + 1936227.

It is an arithmetic number, because the mean of its divisors is an integer number (174222900).

Almost surely, 2^1618336742 is an apocalyptic number.

1618336742 is a deficient number, since it is larger than the sum of its proper divisors (1169229658).

1618336742 is a wasteful number, since it uses less digits than its factorization.

1618336742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3871651.

The product of its digits is 145152, while the sum is 41.

The square root of 1618336742 is about 40228.5563002204. The cubic root of 1618336742 is about 1174.0582142870.

It can be divided in two parts, 16183 and 36742, that added together give a palindrome (52925).

The spelling of 1618336742 in words is "one billion, six hundred eighteen million, three hundred thirty-six thousand, seven hundred forty-two".