1030990393 has 8 divisors (see below), whose sum is σ = 1045221408. Its totient is φ = 1016802624.

The previous prime is 1030990391. The next prime is 1030990427. The reversal of 1030990393 is 3930990301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1030990393 - 2¹ = 1030990391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1030990391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38746 + ... + 59692.

It is an arithmetic number, because the mean of its divisors is an integer number (130652676).

Almost surely, 2^1030990393 is an apocalyptic number.

It is an amenable number.

1030990393 is a deficient number, since it is larger than the sum of its proper divisors (14231015).

1030990393 is an equidigital number, since it uses as much as digits as its factorization.

1030990393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21623.

The product of its (nonzero) digits is 19683, while the sum is 37.

The square root of 1030990393 is about 32109.0391167347. The cubic root of 1030990393 is about 1010.2252195194.

The spelling of 1030990393 in words is "one billion, thirty million, nine hundred ninety thousand, three hundred ninety-three".