39242818 has 8 divisors (see below), whose sum is σ = 58930380. Its totient is φ = 19599360.

The previous prime is 39242813. The next prime is 39242831. The reversal of 39242818 is 81824293.

It can be written as a sum of positive squares in 2 ways, for example, as 37662769 + 1580049 = 6137^2 + 1257^2 .

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

It is a super-2 number, since 2×39242818² = 3079997529162248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (39242813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8703 + ... + 12418.

Almost surely, 2^39242818 is an apocalyptic number.

39242818 is a deficient number, since it is larger than the sum of its proper divisors (19687562).

39242818 is a wasteful number, since it uses less digits than its factorization.

39242818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22052.

The product of its digits is 27648, while the sum is 37.

The square root of 39242818 is about 6264.4088308475. The cubic root of 39242818 is about 339.8234896958.

The spelling of 39242818 in words is "thirty-nine million, two hundred forty-two thousand, eight hundred eighteen".