1025660242 has 8 divisors (see below), whose sum is σ = 1619463600. Its totient is φ = 485839044.

The previous prime is 1025660221. The next prime is 1025660257. The reversal of 1025660242 is 2420665201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1025660242.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13495492 + ... + 13495567.

It is an arithmetic number, because the mean of its divisors is an integer number (202432950).

Almost surely, 2^1025660242 is an apocalyptic number.

1025660242 is a deficient number, since it is larger than the sum of its proper divisors (593803358).

1025660242 is a wasteful number, since it uses less digits than its factorization.

1025660242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26991080.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1025660242 is about 32025.9307749205. The cubic root of 1025660242 is about 1008.4812785554.

The spelling of 1025660242 in words is "one billion, twenty-five million, six hundred sixty thousand, two hundred forty-two".