1327397040 has 60 divisors (see below), whose sum is σ = 4457844144. Its totient is φ = 353972352.

The previous prime is 1327397023. The next prime is 1327397047. The reversal of 1327397040 is 407937231.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1327396986 and 1327397004.

It is not an unprimeable number, because it can be changed into a prime (1327397047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 921084 + ... + 922523.

Almost surely, 2^1327397040 is an apocalyptic number.

1327397040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1327397040 is an abundant number, since it is smaller than the sum of its proper divisors (3130447104).

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

1327397040 is a wasteful number, since it uses less digits than its factorization.

1327397040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843626 (or 1843617 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 1327397040 is about 36433.4604450360. The cubic root of 1327397040 is about 1099.0065520889.

The spelling of 1327397040 in words is "one billion, three hundred twenty-seven million, three hundred ninety-seven thousand, forty".