1145487028 has 24 divisors (see below), whose sum is σ = 2346853824. Its totient is φ = 478948800.

The previous prime is 1145487023. The next prime is 1145487043. The reversal of 1145487028 is 8207845411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145487023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 497758 + ... + 500053.

It is an arithmetic number, because the mean of its divisors is an integer number (97785576).

Almost surely, 2^1145487028 is an apocalyptic number.

It is an amenable number.

1145487028 is an abundant number, since it is smaller than the sum of its proper divisors (1201366796).

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

1145487028 is a wasteful number, since it uses less digits than its factorization.

1145487028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997863 (or 997861 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 40.

The square root of 1145487028 is about 33845.0443639833. The cubic root of 1145487028 is about 1046.3172655992.

The spelling of 1145487028 in words is "one billion, one hundred forty-five million, four hundred eighty-seven thousand, twenty-eight".