1044540477 has 24 divisors (see below), whose sum is σ = 1581547968. Its totient is φ = 663566400.

The previous prime is 1044540467. The next prime is 1044540479. The reversal of 1044540477 is 7740454401.

It is a happy number.

1044540477 is a `hidden beast` number, since 1 + 0 + 44 + 540 + 4 + 77 = 666.

It is not a de Polignac number, because 1044540477 - 2⁸ = 1044540221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044540479) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17049 + ... + 48782.

It is an arithmetic number, because the mean of its divisors is an integer number (65897832).

Almost surely, 2^1044540477 is an apocalyptic number.

It is an amenable number.

1044540477 is a deficient number, since it is larger than the sum of its proper divisors (537007491).

1044540477 is a wasteful number, since it uses less digits than its factorization.

1044540477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65921 (or 65918 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 36.

The square root of 1044540477 is about 32319.3514322302. The cubic root of 1044540477 is about 1014.6316950181.

Adding to 1044540477 its reverse (7740454401), we get a palindrome (8784994878).

The spelling of 1044540477 in words is "one billion, forty-four million, five hundred forty thousand, four hundred seventy-seven".