1340984 has 8 divisors (see below), whose sum is σ = 2514360. Its totient is φ = 670488.

The previous prime is 1340981. The next prime is 1341007. The reversal of 1340984 is 4890431.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83804 + ... + 83819.

It is an arithmetic number, because the mean of its divisors is an integer number (314295).

2^1340984 is an apocalyptic number.

It is an amenable number.

1340984 is a deficient number, since it is larger than the sum of its proper divisors (1173376).

1340984 is a wasteful number, since it uses less digits than its factorization.

1340984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167629 (or 167625 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 1340984 is about 1158.0086355464. The cubic root of 1340984 is about 110.2743564673.

The spelling of 1340984 in words is "one million, three hundred forty thousand, nine hundred eighty-four".