1045642544 has 20 divisors (see below), whose sum is σ = 2027676024. Its totient is φ = 522371328.

The previous prime is 1045642529. The next prime is 1045642547. The reversal of 1045642544 is 4452465401.

It is not an unprimeable number, because it can be changed into a prime (1045642547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8537 + ... + 46520.

Almost surely, 2^1045642544 is an apocalyptic number.

It is an amenable number.

1045642544 is a deficient number, since it is larger than the sum of its proper divisors (982033480).

1045642544 is a wasteful number, since it uses less digits than its factorization.

1045642544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56252 (or 56246 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

The square root of 1045642544 is about 32336.3965834167. The cubic root of 1045642544 is about 1014.9884066072.

The spelling of 1045642544 in words is "one billion, forty-five million, six hundred forty-two thousand, five hundred forty-four".