1025402086 has 16 divisors (see below), whose sum is σ = 1559880000. Its totient is φ = 505468008.

The previous prime is 1025402083. The next prime is 1025402099. The reversal of 1025402086 is 6802045201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025402083) 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 7 ways as a sum of consecutive naturals, for example, 76645 + ... + 89023.

It is an arithmetic number, because the mean of its divisors is an integer number (97492500).

Almost surely, 2^1025402086 is an apocalyptic number.

1025402086 is a deficient number, since it is larger than the sum of its proper divisors (534477914).

1025402086 is a wasteful number, since it uses less digits than its factorization.

1025402086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12963.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 1025402086 is about 32021.9000997755. The cubic root of 1025402086 is about 1008.3966607557.

Adding to 1025402086 its reverse (6802045201), we get a palindrome (7827447287).

The spelling of 1025402086 in words is "one billion, twenty-five million, four hundred two thousand, eighty-six".