6405354 has 12 divisors (see below), whose sum is σ = 13878306. Its totient is φ = 2135112.

The previous prime is 6405353. The next prime is 6405367. The reversal of 6405354 is 4535046.

It can be written as a sum of positive squares in only one way, i.e., 5546025 + 859329 = 2355^2 + 927^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6405353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 177909 + ... + 177944.

Almost surely, 2^6405354 is an apocalyptic number.

6405354 is an abundant number, since it is smaller than the sum of its proper divisors (7472952).

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

6405354 is a wasteful number, since it uses less digits than its factorization.

6405354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355861 (or 355858 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 6405354 is about 2530.8800840814. The cubic root of 6405354 is about 185.7153119695.

The spelling of 6405354 in words is "six million, four hundred five thousand, three hundred fifty-four".