1027402394 has 4 divisors (see below), whose sum is σ = 1541103594. Its totient is φ = 513701196.

The previous prime is 1027402391. The next prime is 1027402417. The reversal of 1027402394 is 4932047201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4932047201 = 37 ⋅133298573.

It can be written as a sum of positive squares in only one way, i.e., 1019205625 + 8196769 = 31925^2 + 2863^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1027402394.

It is not an unprimeable number, because it can be changed into a prime (1027402391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256850597 + ... + 256850600.

Almost surely, 2^1027402394 is an apocalyptic number.

1027402394 is a deficient number, since it is larger than the sum of its proper divisors (513701200).

1027402394 is an equidigital number, since it uses as much as digits as its factorization.

1027402394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513701199.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 1027402394 is about 32053.1183194397. The cubic root of 1027402394 is about 1009.0519463683.

Adding to 1027402394 its reverse (4932047201), we get a palindrome (5959449595).

The spelling of 1027402394 in words is "one billion, twenty-seven million, four hundred two thousand, three hundred ninety-four".