1368261944 has 24 divisors (see below), whose sum is σ = 2932583160. Its totient is φ = 586279344.

The previous prime is 1368261943. The next prime is 1368261959. The reversal of 1368261944 is 4491628631.

It is a junction number, because it is equal to n+sod(n) for n = 1368261895 and 1368261904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368261941) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 274337 + ... + 279279.

It is an arithmetic number, because the mean of its divisors is an integer number (122190965).

Almost surely, 2^1368261944 is an apocalyptic number.

1368261944 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1368261944 is an abundant number, since it is smaller than the sum of its proper divisors (1564321216).

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

1368261944 is an frugal number, since it uses more digits than its factorization.

1368261944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9899 (or 4952 counting only the distinct ones).

The product of its digits is 248832, while the sum is 44.

The square root of 1368261944 is about 36990.0249256472. The cubic root of 1368261944 is about 1110.1706698585.

The spelling of 1368261944 in words is "one billion, three hundred sixty-eight million, two hundred sixty-one thousand, nine hundred forty-four".