1078321272 has 32 divisors (see below), whose sum is σ = 3080918400. Its totient is φ = 308091744.

The previous prime is 1078321261. The next prime is 1078321289. The reversal of 1078321272 is 2721238701.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3209122 + ... + 3209457.

It is an arithmetic number, because the mean of its divisors is an integer number (96278700).

Almost surely, 2^1078321272 is an apocalyptic number.

1078321272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1078321272 is an abundant number, since it is smaller than the sum of its proper divisors (2002597128).

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

1078321272 is a wasteful number, since it uses less digits than its factorization.

1078321272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6418595 (or 6418591 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 1078321272 is about 32837.8024843320. The cubic root of 1078321272 is about 1025.4537026151.

Adding to 1078321272 its reverse (2721238701), we get a palindrome (3799559973).

The spelling of 1078321272 in words is "one billion, seventy-eight million, three hundred twenty-one thousand, two hundred seventy-two".