1368498240 has 168 divisors, whose sum is σ = 4881676800. Its totient is φ = 364912128.

The previous prime is 1368498227. The next prime is 1368498251. The reversal of 1368498240 is 428948631.

It is a happy number.

1368498240 is a `hidden beast` number, since 1 + 368 + 49 + 8 + 240 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68961 + ... + 86559.

It is an arithmetic number, because the mean of its divisors is an integer number (29057600).

Almost surely, 2^1368498240 is an apocalyptic number.

1368498240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1368498240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2440838400).

1368498240 is an abundant number, since it is smaller than the sum of its proper divisors (3513178560).

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

1368498240 is an equidigital number, since it uses as much as digits as its factorization.

1368498240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17631 (or 17609 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 1368498240 is about 36993.2188380519. The cubic root of 1368498240 is about 1110.2345742374.

The spelling of 1368498240 in words is "one billion, three hundred sixty-eight million, four hundred ninety-eight thousand, two hundred forty".