1345390 has 32 divisors (see below), whose sum is σ = 2610720. Its totient is φ = 497664.

The previous prime is 1345361. The next prime is 1345423. The reversal of 1345390 is 935431.

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 15 ways as a sum of consecutive naturals, for example, 13822 + ... + 13918.

It is an arithmetic number, because the mean of its divisors is an integer number (81585).

2^1345390 is an apocalyptic number.

1345390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1345390 is a deficient number, since it is larger than the sum of its proper divisors (1265330).

1345390 is a wasteful number, since it uses less digits than its factorization.

1345390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 1345390 is about 1159.9094792267. The cubic root of 1345390 is about 110.3949986357.

The spelling of 1345390 in words is "one million, three hundred forty-five thousand, three hundred ninety".