40706739 has 8 divisors (see below), whose sum is σ = 60306320. Its totient is φ = 27137808.

The previous prime is 40706723. The next prime is 40706777. The reversal of 40706739 is 93760704.

40706739 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40706739 - 2⁴ = 40706723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40706779) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 753802 + ... + 753855.

It is an arithmetic number, because the mean of its divisors is an integer number (7538290).

Almost surely, 2^40706739 is an apocalyptic number.

40706739 is a deficient number, since it is larger than the sum of its proper divisors (19599581).

40706739 is a wasteful number, since it uses less digits than its factorization.

40706739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507666 (or 1507660 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 40706739 is about 6380.1833045768. The cubic root of 40706739 is about 343.9976197555.

The spelling of 40706739 in words is "forty million, seven hundred six thousand, seven hundred thirty-nine".