40707129 has 8 divisors (see below), whose sum is σ = 57468960. Its totient is φ = 25541696.

The previous prime is 40707119. The next prime is 40707133. The reversal of 40707129 is 92170704.

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

It is a cyclic number.

It is not a de Polignac number, because 40707129 - 2¹⁶ = 40641593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40707096 and 40707105.

It is not an unprimeable number, because it can be changed into a prime (40707119) 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, 399039 + ... + 399140.

It is an arithmetic number, because the mean of its divisors is an integer number (7183620).

Almost surely, 2^40707129 is an apocalyptic number.

It is an amenable number.

40707129 is a deficient number, since it is larger than the sum of its proper divisors (16761831).

40707129 is a wasteful number, since it uses less digits than its factorization.

40707129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798199.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 40707129 is about 6380.2138678888. The cubic root of 40707129 is about 343.9987183340.

The spelling of 40707129 in words is "forty million, seven hundred seven thousand, one hundred twenty-nine".