1340899 has 8 divisors (see below), whose sum is σ = 1541120. Its totient is φ = 1142856.

The previous prime is 1340897. The next prime is 1340903. The reversal of 1340899 is 9980431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1340899 - 2¹ = 1340897 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1340891) 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, 1132 + ... + 1990.

It is an arithmetic number, because the mean of its divisors is an integer number (192640).

2^1340899 is an apocalyptic number.

1340899 is a deficient number, since it is larger than the sum of its proper divisors (200221).

1340899 is an equidigital number, since it uses as much as digits as its factorization.

1340899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 1340899 is about 1157.9719340295. The cubic root of 1340899 is about 110.2720264573.

The spelling of 1340899 in words is "one million, three hundred forty thousand, eight hundred ninety-nine".