1280450675 has 24 divisors (see below), whose sum is σ = 1863633696. Its totient is φ = 854288640.

The previous prime is 1280450671. The next prime is 1280450681. The reversal of 1280450675 is 5760540821.

It is not a de Polignac number, because 1280450675 - 2² = 1280450671 is a prime.

It is a super-2 number, since 2×1280450675² = 3279107862215911250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1280450671) 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, 92402 + ... + 105351.

It is an arithmetic number, because the mean of its divisors is an integer number (77651404).

Almost surely, 2^1280450675 is an apocalyptic number.

1280450675 is a deficient number, since it is larger than the sum of its proper divisors (583183021).

1280450675 is a wasteful number, since it uses less digits than its factorization.

1280450675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197807 (or 197802 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 1280450675 is about 35783.3854602943. The cubic root of 1280450675 is about 1085.8944608686.

The spelling of 1280450675 in words is "one billion, two hundred eighty million, four hundred fifty thousand, six hundred seventy-five".