40429020 has 24 divisors (see below), whose sum is σ = 113201424. Its totient is φ = 10781056.

The previous prime is 40429013. The next prime is 40429021. The reversal of 40429020 is 2092404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40429021) 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, 336849 + ... + 336968.

It is an arithmetic number, because the mean of its divisors is an integer number (4716726).

Almost surely, 2^40429020 is an apocalyptic number.

It is an amenable number.

40429020 is an abundant number, since it is smaller than the sum of its proper divisors (72772404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40429020 is a wasteful number, since it uses less digits than its factorization.

40429020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673829 (or 673827 counting only the distinct ones).

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

The square root of 40429020 is about 6358.3818696269. The cubic root of 40429020 is about 343.2135336788.

The spelling of 40429020 in words is "forty million, four hundred twenty-nine thousand, twenty".