1044148857 has 64 divisors (see below), whose sum is σ = 1630368000. Its totient is φ = 589897728.

The previous prime is 1044148849. The next prime is 1044148867. The reversal of 1044148857 is 7588414401.

It is not a de Polignac number, because 1044148857 - 2³ = 1044148849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1044148817) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2051119 + ... + 2051627.

It is an arithmetic number, because the mean of its divisors is an integer number (25474500).

Almost surely, 2^1044148857 is an apocalyptic number.

1044148857 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1044148857 is a deficient number, since it is larger than the sum of its proper divisors (586219143).

1044148857 is a wasteful number, since it uses less digits than its factorization.

1044148857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650.

The product of its (nonzero) digits is 143360, while the sum is 42.

The square root of 1044148857 is about 32313.2922649488. The cubic root of 1044148857 is about 1014.5048769765.

It can be divided in two parts, 10441488 and 57, that multiplied together give a square (595164816 = 24396²).

The spelling of 1044148857 in words is "one billion, forty-four million, one hundred forty-eight thousand, eight hundred fifty-seven".