1345290 has 16 divisors (see below), whose sum is σ = 3228768. Its totient is φ = 358736.

The previous prime is 1345277. The next prime is 1345297. The reversal of 1345290 is 925431.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1345290.

It is not an unprimeable number, because it can be changed into a prime (1345297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22392 + ... + 22451.

It is an arithmetic number, because the mean of its divisors is an integer number (201798).

2^1345290 is an apocalyptic number.

1345290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1345290 is an abundant number, since it is smaller than the sum of its proper divisors (1883478).

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

1345290 is a wasteful number, since it uses less digits than its factorization.

1345290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44853.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1345290 is about 1159.8663716136. The cubic root of 1345290 is about 110.3922634255.

The spelling of 1345290 in words is "one million, three hundred forty-five thousand, two hundred ninety".