9540406 has 8 divisors (see below), whose sum is σ = 14415480. Its totient is φ = 4735248.

The previous prime is 9540403. The next prime is 9540407. The reversal of 9540406 is 6040459.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9540403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17136 + ... + 17683.

It is an arithmetic number, because the mean of its divisors is an integer number (1801935).

Almost surely, 2^9540406 is an apocalyptic number.

9540406 is the 1954-th centered pentagonal number.

9540406 is a deficient number, since it is larger than the sum of its proper divisors (4875074).

9540406 is a wasteful number, since it uses less digits than its factorization.

9540406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34958.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 9540406 is about 3088.7547652735. The cubic root of 9540406 is about 212.0910223830.

The spelling of 9540406 in words is "nine million, five hundred forty thousand, four hundred six".