1026431004 has 24 divisors (see below), whose sum is σ = 2400733440. Its totient is φ = 341325424.

The previous prime is 1026430997. The next prime is 1026431033. The reversal of 1026431004 is 4001346201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97044 + ... + 107099.

It is an arithmetic number, because the mean of its divisors is an integer number (100030560).

Almost surely, 2^1026431004 is an apocalyptic number.

It is an amenable number.

1026431004 is an abundant number, since it is smaller than the sum of its proper divisors (1374302436).

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

1026431004 is a wasteful number, since it uses less digits than its factorization.

1026431004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204569 (or 204567 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1026431004 is about 32037.9619201971. The cubic root of 1026431004 is about 1008.7338327602.

Adding to 1026431004 its reverse (4001346201), we get a palindrome (5027777205).

The spelling of 1026431004 in words is "one billion, twenty-six million, four hundred thirty-one thousand, four".