1340570 has 32 divisors (see below), whose sum is σ = 3010176. Its totient is φ = 417600.

The previous prime is 1340561. The next prime is 1340587. The reversal of 1340570 is 750431.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101 + ... + 1640.

It is an arithmetic number, because the mean of its divisors is an integer number (94068).

2^1340570 is an apocalyptic number.

1340570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1340570 is an abundant number, since it is smaller than the sum of its proper divisors (1669606).

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

1340570 is a wasteful number, since it uses less digits than its factorization.

1340570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 1340570 is about 1157.8298666039. The cubic root of 1340570 is about 110.2630070198.

The spelling of 1340570 in words is "one million, three hundred forty thousand, five hundred seventy".