1327389740 has 24 divisors (see below), whose sum is σ = 2883641040. Its totient is φ = 512646848.

The previous prime is 1327389727. The next prime is 1327389751. The reversal of 1327389740 is 479837231.

It is a junction number, because it is equal to n+sod(n) for n = 1327389691 and 1327389700.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1143722 + ... + 1144881.

It is an arithmetic number, because the mean of its divisors is an integer number (120151710).

Almost surely, 2^1327389740 is an apocalyptic number.

1327389740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1327389740 is an abundant number, since it is smaller than the sum of its proper divisors (1556251300).

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

1327389740 is a wasteful number, since it uses less digits than its factorization.

1327389740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2288641 (or 2288639 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 1327389740 is about 36433.3602622651. The cubic root of 1327389740 is about 1099.0045374285.

The spelling of 1327389740 in words is "one billion, three hundred twenty-seven million, three hundred eighty-nine thousand, seven hundred forty".