40018206734 has 8 divisors (see below), whose sum is σ = 65484338328. Its totient is φ = 18190093960.

The previous prime is 40018206691. The next prime is 40018206803. The reversal of 40018206734 is 43760281004.

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

It is a junction number, because it is equal to n+sod(n) for n = 40018206694 and 40018206703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 909504677 + ... + 909504720.

It is an arithmetic number, because the mean of its divisors is an integer number (8185542291).

Almost surely, 2^40018206734 is an apocalyptic number.

40018206734 is a deficient number, since it is larger than the sum of its proper divisors (25466131594).

40018206734 is a wasteful number, since it uses less digits than its factorization.

40018206734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1819009410.

The product of its (nonzero) digits is 32256, while the sum is 35.

Adding to 40018206734 its reverse (43760281004), we get a palindrome (83778487738).

The spelling of 40018206734 in words is "forty billion, eighteen million, two hundred six thousand, seven hundred thirty-four".