1340998 has 16 divisors (see below), whose sum is σ = 2128896. Its totient is φ = 632520.

The previous prime is 1340981. The next prime is 1341007. The reversal of 1340998 is 8990431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2415 + ... + 2917.

It is an arithmetic number, because the mean of its divisors is an integer number (133056).

2^1340998 is an apocalyptic number.

1340998 is a deficient number, since it is larger than the sum of its proper divisors (787898).

1340998 is a wasteful number, since it uses less digits than its factorization.

1340998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579.

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

The square root of 1340998 is about 1158.0146803905. The cubic root of 1340998 is about 110.2747402242.

Subtracting from 1340998 its sum of digits (34), we obtain a square (1340964 = 1158²).

The spelling of 1340998 in words is "one million, three hundred forty thousand, nine hundred ninety-eight".