1328037144 has 64 divisors (see below), whose sum is σ = 4017600000. Its totient is φ = 357118464.

The previous prime is 1328037071. The next prime is 1328037157. The reversal of 1328037144 is 4417308231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229644 + ... + 235355.

It is an arithmetic number, because the mean of its divisors is an integer number (62775000).

Almost surely, 2^1328037144 is an apocalyptic number.

1328037144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1328037144 is an abundant number, since it is smaller than the sum of its proper divisors (2689562856).

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

1328037144 is a wasteful number, since it uses less digits than its factorization.

1328037144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465032 (or 465028 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 1328037144 is about 36442.2439484728. The cubic root of 1328037144 is about 1099.1831798350.

The spelling of 1328037144 in words is "one billion, three hundred twenty-eight million, thirty-seven thousand, one hundred forty-four".