40010429 has 4 divisors (see below), whose sum is σ = 41301120. Its totient is φ = 38719740.

The previous prime is 40010393. The next prime is 40010441. The reversal of 40010429 is 92401004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40010429 - 2²⁴ = 23233213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40010429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40010479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 645299 + ... + 645360.

It is an arithmetic number, because the mean of its divisors is an integer number (10325280).

Almost surely, 2^40010429 is an apocalyptic number.

It is an amenable number.

40010429 is a deficient number, since it is larger than the sum of its proper divisors (1290691).

40010429 is a wasteful number, since it uses less digits than its factorization.

40010429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290690.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 40010429 is about 6325.3797514458. The cubic root of 40010429 is about 342.0249089845.

The spelling of 40010429 in words is "forty million, ten thousand, four hundred twenty-nine".