40729941 has 24 divisors (see below), whose sum is σ = 70162560. Its totient is φ = 22261536.

The previous prime is 40729937. The next prime is 40729957. The reversal of 40729941 is 14992704.

It is not a de Polignac number, because 40729941 - 2² = 40729937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40729896 and 40729905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40729961) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12606 + ... + 15503.

It is an arithmetic number, because the mean of its divisors is an integer number (2923440).

Almost surely, 2^40729941 is an apocalyptic number.

It is an amenable number.

40729941 is a deficient number, since it is larger than the sum of its proper divisors (29432619).

40729941 is a wasteful number, since it uses less digits than its factorization.

40729941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28145 (or 28142 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 40729941 is about 6382.0013318707. The cubic root of 40729941 is about 344.0629645201.

The spelling of 40729941 in words is "forty million, seven hundred twenty-nine thousand, nine hundred forty-one".