1027328642 has 4 divisors (see below), whose sum is σ = 1540992966. Its totient is φ = 513664320.

The previous prime is 1027328641. The next prime is 1027328647. The reversal of 1027328642 is 2468237201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2468237201 = 509 ⋅4849189.

It can be written as a sum of positive squares in only one way, i.e., 611127841 + 416200801 = 24721^2 + 20401^2 .

It is not an unprimeable number, because it can be changed into a prime (1027328641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256832159 + ... + 256832162.

Almost surely, 2^1027328642 is an apocalyptic number.

1027328642 is a deficient number, since it is larger than the sum of its proper divisors (513664324).

1027328642 is an equidigital number, since it uses as much as digits as its factorization.

1027328642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513664323.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 1027328642 is about 32051.9678335044. The cubic root of 1027328642 is about 1009.0278008857.

The spelling of 1027328642 in words is "one billion, twenty-seven million, three hundred twenty-eight thousand, six hundred forty-two".