1030431402 has 192 divisors, whose sum is σ = 3099559680. Its totient is φ = 246913920.

The previous prime is 1030431379. The next prime is 1030431419. The reversal of 1030431402 is 2041340301.

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 593728 + ... + 595460.

It is an arithmetic number, because the mean of its divisors is an integer number (16143540).

Almost surely, 2^1030431402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1030431402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1549779840).

1030431402 is an abundant number, since it is smaller than the sum of its proper divisors (2069128278).

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

1030431402 is a wasteful number, since it uses less digits than its factorization.

1030431402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786 (or 1769 counting only the distinct ones).

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

The square root of 1030431402 is about 32100.3333627550. Note that the first 4 decimals coincide. The cubic root of 1030431402 is about 1010.0426090576.

Adding to 1030431402 its reverse (2041340301), we get a palindrome (3071771703).

The spelling of 1030431402 in words is "one billion, thirty million, four hundred thirty-one thousand, four hundred two".