1280083886 has 8 divisors (see below), whose sum is σ = 1934141760. Its totient is φ = 635369968.

The previous prime is 1280083859. The next prime is 1280083933. The reversal of 1280083886 is 6883800821.

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

It is a super-2 number, since 2×1280083886² = 3277229510393721992, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2335646 + ... + 2336193.

It is an arithmetic number, because the mean of its divisors is an integer number (241767720).

Almost surely, 2^1280083886 is an apocalyptic number.

1280083886 is a deficient number, since it is larger than the sum of its proper divisors (654057874).

1280083886 is a wasteful number, since it uses less digits than its factorization.

1280083886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4671978.

The product of its (nonzero) digits is 147456, while the sum is 44.

The square root of 1280083886 is about 35778.2599632794. The cubic root of 1280083886 is about 1085.7907650403.

The spelling of 1280083886 in words is "one billion, two hundred eighty million, eighty-three thousand, eight hundred eighty-six".