40534129 has 16 divisors (see below), whose sum is σ = 42977088. Its totient is φ = 38187072.

The previous prime is 40534127. The next prime is 40534139. The reversal of 40534129 is 92143504.

It is a cyclic number.

It is not a de Polignac number, because 40534129 - 2¹ = 40534127 is a prime.

It is a super-2 number, since 2×40534129² = 3286031227577282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40534097 and 40534106.

It is not an unprimeable number, because it can be changed into a prime (40534127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205659 + ... + 205855.

It is an arithmetic number, because the mean of its divisors is an integer number (2686068).

Almost surely, 2^40534129 is an apocalyptic number.

It is an amenable number.

40534129 is a deficient number, since it is larger than the sum of its proper divisors (2442959).

40534129 is a wasteful number, since it uses less digits than its factorization.

40534129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 40534129 is about 6366.6418934946. The cubic root of 40534129 is about 343.5107097622.

The spelling of 40534129 in words is "forty million, five hundred thirty-four thousand, one hundred twenty-nine".