1030208390 has 16 divisors (see below), whose sum is σ = 1904494032. Its totient is φ = 400945824.

The previous prime is 1030208371. The next prime is 1030208393. The reversal of 1030208390 is 938020301.

It is a super-2 number, since 2×1030208390² = 2122658653652784200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030208393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1391804 + ... + 1392543.

It is an arithmetic number, because the mean of its divisors is an integer number (119030877).

Almost surely, 2^1030208390 is an apocalyptic number.

1030208390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1030208390 is a deficient number, since it is larger than the sum of its proper divisors (874285642).

1030208390 is a wasteful number, since it uses less digits than its factorization.

1030208390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2784391.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1030208390 is about 32096.8595036960. The cubic root of 1030208390 is about 1009.9697373542.

Adding to 1030208390 its reverse (938020301), we get a palindrome (1968228691).

The spelling of 1030208390 in words is "one billion, thirty million, two hundred eight thousand, three hundred ninety".