1405308 has 12 divisors (see below), whose sum is σ = 3279080. Its totient is φ = 468432.

The previous prime is 1405289. The next prime is 1405309. The reversal of 1405308 is 8035041.

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 (1405309) 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, 58543 + ... + 58566.

2^1405308 is an apocalyptic number.

It is an amenable number.

1405308 is an abundant number, since it is smaller than the sum of its proper divisors (1873772).

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

1405308 is a wasteful number, since it uses less digits than its factorization.

1405308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117116 (or 117114 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1405308 is about 1185.4568739520. The cubic root of 1405308 is about 112.0100968788.

The spelling of 1405308 in words is "one million, four hundred five thousand, three hundred eight".