40929789 has 8 divisors (see below), whose sum is σ = 54908512. Its totient is φ = 27118800.

The previous prime is 40929769. The next prime is 40929793. The reversal of 40929789 is 98792904.

It is a happy number.

40929789 is nontrivially palindromic in base 14.

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

It is not a de Polignac number, because 40929789 - 2⁹ = 40929277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40929739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41362 + ... + 42339.

It is an arithmetic number, because the mean of its divisors is an integer number (6863564).

Almost surely, 2^40929789 is an apocalyptic number.

It is an amenable number.

40929789 is a deficient number, since it is larger than the sum of its proper divisors (13978723).

40929789 is a wasteful number, since it uses less digits than its factorization.

40929789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83867.

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 40929789 is about 6397.6393302530. The cubic root of 40929789 is about 344.6247800467.

The spelling of 40929789 in words is "forty million, nine hundred twenty-nine thousand, seven hundred eighty-nine".