1405902 has 8 divisors (see below), whose sum is σ = 2811816. Its totient is φ = 468632.

The previous prime is 1405879. The next prime is 1405919. The reversal of 1405902 is 2095041.

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

1405902 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 117153 + ... + 117164.

It is an arithmetic number, because the mean of its divisors is an integer number (351477).

2^1405902 is an apocalyptic number.

1405902 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1405902 is a wasteful number, since it uses less digits than its factorization.

1405902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234322.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1405902 is about 1185.7073838009. The cubic root of 1405902 is about 112.0258762490.

The spelling of 1405902 in words is "one million, four hundred five thousand, nine hundred two".