1044039977 has 4 divisors (see below), whose sum is σ = 1044212736. Its totient is φ = 1043867220.

The previous prime is 1044039973. The next prime is 1044040007. The reversal of 1044039977 is 7799304401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7799304401 = 7 ⋅1114186343.

It is a cyclic number.

It is not a de Polignac number, because 1044039977 - 2² = 1044039973 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1044039973) 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, 76973 + ... + 89514.

It is an arithmetic number, because the mean of its divisors is an integer number (261053184).

Almost surely, 2^1044039977 is an apocalyptic number.

It is an amenable number.

1044039977 is a deficient number, since it is larger than the sum of its proper divisors (172759).

1044039977 is an equidigital number, since it uses as much as digits as its factorization.

1044039977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172758.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 1044039977 is about 32311.6074654295. The cubic root of 1044039977 is about 1014.4696128058.

The spelling of 1044039977 in words is "one billion, forty-four million, thirty-nine thousand, nine hundred seventy-seven".