1405485 has 32 divisors (see below), whose sum is σ = 2592000. Its totient is φ = 721728.

The previous prime is 1405477. The next prime is 1405493. The reversal of 1405485 is 5845041.

It is an interprime number because it is at equal distance from previous prime (1405477) and next prime (1405493).

It is not a de Polignac number, because 1405485 - 2³ = 1405477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3736 + ... + 4094.

It is an arithmetic number, because the mean of its divisors is an integer number (81000).

2^1405485 is an apocalyptic number.

1405485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1405485 is a deficient number, since it is larger than the sum of its proper divisors (1186515).

1405485 is a wasteful number, since it uses less digits than its factorization.

1405485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402 (or 396 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 1405485 is about 1185.5315263628. The cubic root of 1405485 is about 112.0147992774.

It can be divided in two parts, 140 and 5485, that added together give a square (5625 = 75²).

The spelling of 1405485 in words is "one million, four hundred five thousand, four hundred eighty-five".