1349978 has 16 divisors (see below), whose sum is σ = 2330304. Its totient is φ = 574560.

The previous prime is 1349977. The next prime is 1349993. The reversal of 1349978 is 8799431.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1349977) 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, 2726 + ... + 3182.

It is an arithmetic number, because the mean of its divisors is an integer number (145644).

2^1349978 is an apocalyptic number.

1349978 is a deficient number, since it is larger than the sum of its proper divisors (980326).

1349978 is a wasteful number, since it uses less digits than its factorization.

1349978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677.

The product of its digits is 54432, while the sum is 41.

The square root of 1349978 is about 1161.8855365310. The cubic root of 1349978 is about 110.5203445953.

The spelling of 1349978 in words is "one million, three hundred forty-nine thousand, nine hundred seventy-eight".