40740929 has 4 divisors (see below), whose sum is σ = 41136576. Its totient is φ = 40345284.

The previous prime is 40740877. The next prime is 40740967. The reversal of 40740929 is 92904704.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40740929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40740989) 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, 197669 + ... + 197874.

It is an arithmetic number, because the mean of its divisors is an integer number (10284144).

Almost surely, 2^40740929 is an apocalyptic number.

It is an amenable number.

40740929 is a deficient number, since it is larger than the sum of its proper divisors (395647).

40740929 is a wasteful number, since it uses less digits than its factorization.

40740929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395646.

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

The square root of 40740929 is about 6382.8621323040. The cubic root of 40740929 is about 344.0939018260.

The spelling of 40740929 in words is "forty million, seven hundred forty thousand, nine hundred twenty-nine".