2209429404 has 432 divisors, whose sum is σ = 7529034240. Its totient is φ = 540207360.

The previous prime is 2209429403. The next prime is 2209429451. The reversal of 2209429404 is 4049249022.

2209429404 is a `hidden beast` number, since 2 + 209 + 42 + 9 + 404 = 666.

2209429404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2209429403) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 31118689 + ... + 31118759.

It is an arithmetic number, because the mean of its divisors is an integer number (17428320).

Almost surely, 2^2209429404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2209429404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3764517120).

2209429404 is an abundant number, since it is smaller than the sum of its proper divisors (5319604836).

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

2209429404 is a wasteful number, since it uses less digits than its factorization.

2209429404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 2209429404 is about 47004.5679056834. The cubic root of 2209429404 is about 1302.4469502649.

The spelling of 2209429404 in words is "two billion, two hundred nine million, four hundred twenty-nine thousand, four hundred four".