1081206028 has 24 divisors (see below), whose sum is σ = 2170068992. Its totient is φ = 461733264.

The previous prime is 1081206019. The next prime is 1081206037. The reversal of 1081206028 is 8206021801.

It is an interprime number because it is at equal distance from previous prime (1081206019) and next prime (1081206037).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 1081205987 and 1081206005.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60300 + ... + 76147.

Almost surely, 2^1081206028 is an apocalyptic number.

It is an amenable number.

1081206028 is an abundant number, since it is smaller than the sum of its proper divisors (1088862964).

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

1081206028 is a wasteful number, since it uses less digits than its factorization.

1081206028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136741 (or 136739 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 1081206028 is about 32881.6974622661. The cubic root of 1081206028 is about 1026.3673294325.

Adding to 1081206028 its reverse (8206021801), we get a palindrome (9287227829).

The spelling of 1081206028 in words is "one billion, eighty-one million, two hundred six thousand, twenty-eight".