406738356 has 12 divisors (see below), whose sum is σ = 949056192. Its totient is φ = 135579448.

The previous prime is 406738349. The next prime is 406738357. The reversal of 406738356 is 653837604.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406738357) 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, 16947420 + ... + 16947443.

It is an arithmetic number, because the mean of its divisors is an integer number (79088016).

Almost surely, 2^406738356 is an apocalyptic number.

It is an amenable number.

406738356 is an abundant number, since it is smaller than the sum of its proper divisors (542317836).

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

406738356 is a wasteful number, since it uses less digits than its factorization.

406738356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33894870 (or 33894868 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The square root of 406738356 is about 20167.7553535340. The cubic root of 406738356 is about 740.9206680556.

The spelling of 406738356 in words is "four hundred six million, seven hundred thirty-eight thousand, three hundred fifty-six".