40729597 has 8 divisors (see below), whose sum is σ = 43164000. Its totient is φ = 38324304.

The previous prime is 40729583. The next prime is 40729609. The reversal of 40729597 is 79592704.

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

It is a cyclic number.

It is not a de Polignac number, because 40729597 - 2¹⁵ = 40696829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40729397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4363 + ... + 10024.

It is an arithmetic number, because the mean of its divisors is an integer number (5395500).

Almost surely, 2^40729597 is an apocalyptic number.

It is an amenable number.

40729597 is a deficient number, since it is larger than the sum of its proper divisors (2434403).

40729597 is a wasteful number, since it uses less digits than its factorization.

40729597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14555.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 40729597 is about 6381.9743810203. The cubic root of 40729597 is about 344.0619958798.

The spelling of 40729597 in words is "forty million, seven hundred twenty-nine thousand, five hundred ninety-seven".