1374405 has 16 divisors (see below), whose sum is σ = 2237760. Its totient is φ = 720128.

The previous prime is 1374379. The next prime is 1374407. The reversal of 1374405 is 5044731.

It is a cyclic number.

It is not a de Polignac number, because 1374405 - 2⁶ = 1374341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1374407) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 109 + ... + 1661.

It is an arithmetic number, because the mean of its divisors is an integer number (139860).

2^1374405 is an apocalyptic number.

1374405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1374405 is a deficient number, since it is larger than the sum of its proper divisors (863355).

1374405 is a wasteful number, since it uses less digits than its factorization.

1374405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 1374405 is about 1172.3502036508. The cubic root of 1374405 is about 111.1829626003.

The spelling of 1374405 in words is "one million, three hundred seventy-four thousand, four hundred five".