1025431244 has 6 divisors (see below), whose sum is σ = 1794504684. Its totient is φ = 512715620.

The previous prime is 1025431243. The next prime is 1025431247. The reversal of 1025431244 is 4421345201.

It is not an unprimeable number, because it can be changed into a prime (1025431243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128178902 + ... + 128178909.

It is an arithmetic number, because the mean of its divisors is an integer number (299084114).

Almost surely, 2^1025431244 is an apocalyptic number.

It is an amenable number.

1025431244 is a deficient number, since it is larger than the sum of its proper divisors (769073440).

1025431244 is a wasteful number, since it uses less digits than its factorization.

1025431244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256357815 (or 256357813 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1025431244 is about 32022.3553787038. The cubic root of 1025431244 is about 1008.4062188115.

Adding to 1025431244 its reverse (4421345201), we get a palindrome (5446776445).

The spelling of 1025431244 in words is "one billion, twenty-five million, four hundred thirty-one thousand, two hundred forty-four".