1087028642 has 12 divisors (see below), whose sum is σ = 1896754230. Its totient is φ = 465869376.

The previous prime is 1087028641. The next prime is 1087028651. The reversal of 1087028642 is 2468207801.

It can be written as a sum of positive squares in only one way, i.e., 1083792241 + 3236401 = 32921^2 + 1799^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1087028596 and 1087028605.

It is not an unprimeable number, because it can be changed into a prime (1087028641) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5545967 + ... + 5546162.

Almost surely, 2^1087028642 is an apocalyptic number.

1087028642 is a deficient number, since it is larger than the sum of its proper divisors (809725588).

1087028642 is a wasteful number, since it uses less digits than its factorization.

1087028642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11092145 (or 11092138 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 1087028642 is about 32970.1174095574. The cubic root of 1087028642 is about 1028.2064624150.

The spelling of 1087028642 in words is "one billion, eighty-seven million, twenty-eight thousand, six hundred forty-two".