1012028393 has 4 divisors (see below), whose sum is σ = 1033560960. Its totient is φ = 990495828.

The previous prime is 1012028389. The next prime is 1012028417. The reversal of 1012028393 is 3938202101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3938202101 = 32063 ⋅122827.

It is a cyclic number.

It is not a de Polignac number, because 1012028393 - 2² = 1012028389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012028333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10766213 + ... + 10766306.

It is an arithmetic number, because the mean of its divisors is an integer number (258390240).

Almost surely, 2^1012028393 is an apocalyptic number.

It is an amenable number.

1012028393 is a deficient number, since it is larger than the sum of its proper divisors (21532567).

1012028393 is an equidigital number, since it uses as much as digits as its factorization.

1012028393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21532566.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 1012028393 is about 31812.3937011977. The cubic root of 1012028393 is about 1003.9934951008.

The spelling of 1012028393 in words is "one billion, twelve million, twenty-eight thousand, three hundred ninety-three".