1405602 has 48 divisors (see below), whose sum is σ = 3444480. Its totient is φ = 410400.

The previous prime is 1405597. The next prime is 1405631. The reversal of 1405602 is 2065041.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6024 + ... + 6252.

It is an arithmetic number, because the mean of its divisors is an integer number (71760).

2^1405602 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1405602, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1722240).

1405602 is an abundant number, since it is smaller than the sum of its proper divisors (2038878).

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

1405602 is a wasteful number, since it uses less digits than its factorization.

1405602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1405602 is about 1185.5808702910. The cubic root of 1405602 is about 112.0179074258.

The spelling of 1405602 in words is "one million, four hundred five thousand, six hundred two".