1345790 has 16 divisors (see below), whose sum is σ = 2464560.
Its totient is φ = 528960.
The previous prime is 1345787. The next prime is 1345811. The reversal of 1345790 is 975431.
It is a super-2 number, since 2×13457902 = 3622301448200, which contains 22 as substring.
It is a Curzon number.
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 7 ways as a sum of consecutive naturals, for example, 551 + ... + 1730.
It is an arithmetic number, because the mean of its divisors is an integer number (154035).
21345790 is an apocalyptic number.
1345790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1345790 is a deficient number, since it is larger than the sum of its proper divisors (1118770).
1345790 is a wasteful number, since it uses less digits than its factorization.
1345790 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2347.
The product of its (nonzero) digits is 3780, while the sum is 29.
The square root of 1345790 is about 1160.0818936610.
The cubic root of 1345790 is about 110.4059381214.
The spelling of 1345790 in words is "one million, three hundred forty-five thousand, seven hundred ninety".