1027044945 has 12 divisors (see below), whose sum is σ = 1780211316. Its totient is φ = 547757280.

The previous prime is 1027044883. The next prime is 1027044961. The reversal of 1027044945 is 5494407201.

It is a happy number.

1027044945 is a `hidden beast` number, since 102 + 70 + 449 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 404492544 + 622552401 = 20112^2 + 24951^2 .

It is not a de Polignac number, because 1027044945 - 2⁹ = 1027044433 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11411566 + ... + 11411655.

It is an arithmetic number, because the mean of its divisors is an integer number (148350943).

Almost surely, 2^1027044945 is an apocalyptic number.

1027044945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1027044945 is a deficient number, since it is larger than the sum of its proper divisors (753166371).

1027044945 is a wasteful number, since it uses less digits than its factorization.

1027044945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22823232 (or 22823229 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 1027044945 is about 32047.5419494226. The cubic root of 1027044945 is about 1008.9349112616.

The spelling of 1027044945 in words is "one billion, twenty-seven million, forty-four thousand, nine hundred forty-five".