1025356444 has 48 divisors (see below), whose sum is σ = 2110401216. Its totient is φ = 426816000.

The previous prime is 1025356439. The next prime is 1025356447. The reversal of 1025356444 is 4446535201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025356447) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 146464 + ... + 153304.

It is an arithmetic number, because the mean of its divisors is an integer number (43966692).

Almost surely, 2^1025356444 is an apocalyptic number.

1025356444 is a gapful number since it is divisible by the number (14) 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 1025356444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1055200608).

1025356444 is an abundant number, since it is smaller than the sum of its proper divisors (1085044772).

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

1025356444 is a wasteful number, since it uses less digits than its factorization.

1025356444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7006 (or 7004 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 1025356444 is about 32021.1874233296. The cubic root of 1025356444 is about 1008.3816988450.

The spelling of 1025356444 in words is "one billion, twenty-five million, three hundred fifty-six thousand, four hundred forty-four".