40911129 has 72 divisors (see below), whose sum is σ = 75595680. Its totient is φ = 21796992.

The previous prime is 40911121. The next prime is 40911133. The reversal of 40911129 is 92111904.

It is not a de Polignac number, because 40911129 - 2³ = 40911121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40911121) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 382294 + ... + 382400.

It is an arithmetic number, because the mean of its divisors is an integer number (1049940).

Almost surely, 2^40911129 is an apocalyptic number.

40911129 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

40911129 is a deficient number, since it is larger than the sum of its proper divisors (34684551).

40911129 is a wasteful number, since it uses less digits than its factorization.

40911129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 40911129 is about 6396.1808135793. The cubic root of 40911129 is about 344.5724003003.

The spelling of 40911129 in words is "forty million, nine hundred eleven thousand, one hundred twenty-nine".