40818742 has 4 divisors (see below), whose sum is σ = 61228116. Its totient is φ = 20409370.

The previous prime is 40818719. The next prime is 40818761. The reversal of 40818742 is 24781804.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 40818698 and 40818707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10204684 + ... + 10204687.

It is an arithmetic number, because the mean of its divisors is an integer number (15307029).

Almost surely, 2^40818742 is an apocalyptic number.

40818742 is a deficient number, since it is larger than the sum of its proper divisors (20409374).

40818742 is a wasteful number, since it uses less digits than its factorization.

40818742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20409373.

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 40818742 is about 6388.9546875839. The cubic root of 40818742 is about 344.3128295010.

The spelling of 40818742 in words is "forty million, eight hundred eighteen thousand, seven hundred forty-two".