1368456040 has 32 divisors (see below), whose sum is σ = 3518887680. Its totient is φ = 469184832.

The previous prime is 1368456013. The next prime is 1368456041. The reversal of 1368456040 is 406548631.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1368456041) 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, 2443392 + ... + 2443951.

It is an arithmetic number, because the mean of its divisors is an integer number (109965240).

Almost surely, 2^1368456040 is an apocalyptic number.

1368456040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1368456040 is an abundant number, since it is smaller than the sum of its proper divisors (2150431640).

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

1368456040 is a wasteful number, since it uses less digits than its factorization.

1368456040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4887361 (or 4887357 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 1368456040 is about 36992.6484588492. The cubic root of 1368456040 is about 1110.2231621217.

The spelling of 1368456040 in words is "one billion, three hundred sixty-eight million, four hundred fifty-six thousand, forty".