1368772464 has 40 divisors (see below), whose sum is σ = 3722103040. Its totient is φ = 432243648.

The previous prime is 1368772463. The next prime is 1368772477. The reversal of 1368772464 is 4642778631.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368772463) 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, 749512 + ... + 751335.

It is an arithmetic number, because the mean of its divisors is an integer number (93052576).

Almost surely, 2^1368772464 is an apocalyptic number.

It is an amenable number.

1368772464 is an abundant number, since it is smaller than the sum of its proper divisors (2353330576).

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

1368772464 is a wasteful number, since it uses less digits than its factorization.

1368772464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500877 (or 1500871 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 48.

The square root of 1368772464 is about 36996.9250614156. The cubic root of 1368772464 is about 1110.3087267216.

The spelling of 1368772464 in words is "one billion, three hundred sixty-eight million, seven hundred seventy-two thousand, four hundred sixty-four".