406229028 has 12 divisors (see below), whose sum is σ = 947867760. Its totient is φ = 135409672.

The previous prime is 406229027. The next prime is 406229077. The reversal of 406229028 is 820922604.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 406229028.

It is not an unprimeable number, because it can be changed into a prime (406229023) 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, 16926198 + ... + 16926221.

It is an arithmetic number, because the mean of its divisors is an integer number (78988980).

Almost surely, 2^406229028 is an apocalyptic number.

It is an amenable number.

406229028 is an abundant number, since it is smaller than the sum of its proper divisors (541638732).

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

406229028 is a wasteful number, since it uses less digits than its factorization.

406229028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33852426 (or 33852424 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 406229028 is about 20155.1241127412. The cubic root of 406229028 is about 740.6112723764.

The spelling of 406229028 in words is "four hundred six million, two hundred twenty-nine thousand, twenty-eight".