1025435866 has 32 divisors (see below), whose sum is σ = 1905700608. Its totient is φ = 402969600.

The previous prime is 1025435863. The next prime is 1025435893. The reversal of 1025435866 is 6685345201.

It is not an unprimeable number, because it can be changed into a prime (1025435863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8826 + ... + 46138.

It is an arithmetic number, because the mean of its divisors is an integer number (59553144).

Almost surely, 2^1025435866 is an apocalyptic number.

1025435866 is a deficient number, since it is larger than the sum of its proper divisors (880264742).

1025435866 is a wasteful number, since it uses less digits than its factorization.

1025435866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37486.

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 1025435866 is about 32022.4275469553. The cubic root of 1025435866 is about 1008.4077338965.

The spelling of 1025435866 in words is "one billion, twenty-five million, four hundred thirty-five thousand, eight hundred sixty-six".