1368440 has 16 divisors (see below), whose sum is σ = 3079080. Its totient is φ = 547360.

The previous prime is 1368439. The next prime is 1368443. The reversal of 1368440 is 448631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17066 + ... + 17145.

2^1368440 is an apocalyptic number.

1368440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1368440 is an abundant number, since it is smaller than the sum of its proper divisors (1710640).

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

1368440 is a wasteful number, since it uses less digits than its factorization.

1368440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34222 (or 34218 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 1368440 is about 1169.8034022860. The cubic root of 1368440 is about 111.0218824374.

The spelling of 1368440 in words is "one million, three hundred sixty-eight thousand, four hundred forty".