1024489845 has 24 divisors (see below), whose sum is σ = 1776908952. Its totient is φ = 546048000.

The previous prime is 1024489789. The next prime is 1024489867. The reversal of 1024489845 is 5489844201.

It can be written as a sum of positive squares in 4 ways, for example, as 74494161 + 949995684 = 8631^2 + 30822^2 .

It is not a de Polignac number, because 1024489845 - 2⁸ = 1024489589 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1024489845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74725 + ... + 87365.

It is an arithmetic number, because the mean of its divisors is an integer number (74037873).

Almost surely, 2^1024489845 is an apocalyptic number.

1024489845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1024489845 is a deficient number, since it is larger than the sum of its proper divisors (752419107).

1024489845 is a wasteful number, since it uses less digits than its factorization.

1024489845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14453 (or 14450 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The square root of 1024489845 is about 32007.6529130144. The cubic root of 1024489845 is about 1008.0975346145.

The spelling of 1024489845 in words is "one billion, twenty-four million, four hundred eighty-nine thousand, eight hundred forty-five".