40929549 has 4 divisors (see below), whose sum is σ = 54572736. Its totient is φ = 27286364.

The previous prime is 40929491. The next prime is 40929589. The reversal of 40929549 is 94592904.

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 not a de Polignac number, because 40929549 - 2⁹ = 40929037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40929549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40929589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6821589 + ... + 6821594.

It is an arithmetic number, because the mean of its divisors is an integer number (13643184).

Almost surely, 2^40929549 is an apocalyptic number.

It is an amenable number.

40929549 is a deficient number, since it is larger than the sum of its proper divisors (13643187).

40929549 is a wasteful number, since it uses less digits than its factorization.

40929549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13643186.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 40929549 is about 6397.6205733069. The cubic root of 40929549 is about 344.6241064533.

The spelling of 40929549 in words is "forty million, nine hundred twenty-nine thousand, five hundred forty-nine".