1368978 has 16 divisors (see below), whose sum is σ = 2948736. Its totient is φ = 421200.

The previous prime is 1368971. The next prime is 1368979. The reversal of 1368978 is 8798631.

It is not an unprimeable number, because it can be changed into a prime (1368971) 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, 8698 + ... + 8853.

It is an arithmetic number, because the mean of its divisors is an integer number (184296).

2^1368978 is an apocalyptic number.

1368978 is an abundant number, since it is smaller than the sum of its proper divisors (1579758).

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

1368978 is a wasteful number, since it uses less digits than its factorization.

1368978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17569.

The product of its digits is 72576, while the sum is 42.

The square root of 1368978 is about 1170.0333328585. The cubic root of 1368978 is about 111.0364298898.

It can be divided in two parts, 1368 and 978, that added together give a triangular number (2346 = T₆₈).

The spelling of 1368978 in words is "one million, three hundred sixty-eight thousand, nine hundred seventy-eight".