1280824057 has 8 divisors (see below), whose sum is σ = 1285798400. Its totient is φ = 1275858864.

The previous prime is 1280824049. The next prime is 1280824087. The reversal of 1280824057 is 7504280821.

It is a Cunningham number, because it is equal to 1086³+1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1280824057 - 2³ = 1280824049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1280824037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 410419 + ... + 413527.

It is an arithmetic number, because the mean of its divisors is an integer number (160724800).

Almost surely, 2^1280824057 is an apocalyptic number.

It is an amenable number.

1280824057 is a deficient number, since it is larger than the sum of its proper divisors (4974343).

1280824057 is a wasteful number, since it uses less digits than its factorization.

1280824057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4575.

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 1280824057 is about 35788.6023337040. The cubic root of 1280824057 is about 1086.0000002826. Note that the first 6 decimals are identical.

The spelling of 1280824057 in words is "one billion, two hundred eighty million, eight hundred twenty-four thousand, fifty-seven".