1030431420 has 72 divisors (see below), whose sum is σ = 3135101424. Its totient is φ = 273950208.

The previous prime is 1030431419. The next prime is 1030431461. The reversal of 1030431420 is 241340301.

It is a super-2 number, since 2×1030431420² = 2123577822646432800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1030431393 and 1030431402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52167 + ... + 69153.

Almost surely, 2^1030431420 is an apocalyptic number.

1030431420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1030431420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1567550712).

1030431420 is an abundant number, since it is smaller than the sum of its proper divisors (2104670004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1030431420 is a wasteful number, since it uses less digits than its factorization.

1030431420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17339 (or 17334 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1030431420 is about 32100.3336431259. Note that the first 3 decimals coincide. The cubic root of 1030431420 is about 1010.0426149388.

Adding to 1030431420 its reverse (241340301), we get a palindrome (1271771721).

The spelling of 1030431420 in words is "one billion, thirty million, four hundred thirty-one thousand, four hundred twenty".