40027429 has 16 divisors (see below), whose sum is σ = 45763200. Its totient is φ = 34727616.

The previous prime is 40027399. The next prime is 40027441. The reversal of 40027429 is 92472004.

It is a cyclic number.

It is not a de Polignac number, because 40027429 - 2⁵ = 40027397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40027397 and 40027406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40027459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16507 + ... + 18775.

It is an arithmetic number, because the mean of its divisors is an integer number (2860200).

Almost surely, 2^40027429 is an apocalyptic number.

It is an amenable number.

40027429 is a deficient number, since it is larger than the sum of its proper divisors (5735771).

40027429 is a wasteful number, since it uses less digits than its factorization.

40027429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 40027429 is about 6326.7234015721. The cubic root of 40027429 is about 342.0733430245.

The spelling of 40027429 in words is "forty million, twenty-seven thousand, four hundred twenty-nine".