240040029 has 32 divisors (see below), whose sum is σ = 342328320. Its totient is φ = 149288832.

The previous prime is 240040027. The next prime is 240040039. The reversal of 240040029 is 920040042.

It is not a de Polignac number, because 240040029 - 2¹ = 240040027 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 240039987 and 240040014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240040027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 633162 + ... + 633540.

It is an arithmetic number, because the mean of its divisors is an integer number (10697760).

Almost surely, 2^240040029 is an apocalyptic number.

It is an amenable number.

240040029 is a deficient number, since it is larger than the sum of its proper divisors (102288291).

240040029 is a wasteful number, since it uses less digits than its factorization.

240040029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 240040029 is about 15493.2252613844. The cubic root of 240040029 is about 621.4810491062.

The spelling of 240040029 in words is "two hundred forty million, forty thousand, twenty-nine".