40739138 has 8 divisors (see below), whose sum is σ = 66664080. Its totient is φ = 18517780.

The previous prime is 40739131. The next prime is 40739143. The reversal of 40739138 is 83193704.

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 = 40739098 and 40739107.

It is not an unprimeable number, because it can be changed into a prime (40739131) 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, 925868 + ... + 925911.

It is an arithmetic number, because the mean of its divisors is an integer number (8333010).

Almost surely, 2^40739138 is an apocalyptic number.

40739138 is a deficient number, since it is larger than the sum of its proper divisors (25924942).

40739138 is a wasteful number, since it uses less digits than its factorization.

40739138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851792.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 40739138 is about 6382.7218331994. The cubic root of 40739138 is about 344.0888595485.

The spelling of 40739138 in words is "forty million, seven hundred thirty-nine thousand, one hundred thirty-eight".