1285106406 has 16 divisors (see below), whose sum is σ = 2658841200. Its totient is φ = 413597408.

The previous prime is 1285106371. The next prime is 1285106411. The reversal of 1285106406 is 6046015821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3692661 + ... + 3693008.

It is an arithmetic number, because the mean of its divisors is an integer number (166177575).

Almost surely, 2^1285106406 is an apocalyptic number.

1285106406 is an abundant number, since it is smaller than the sum of its proper divisors (1373734794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1285106406 is a wasteful number, since it uses less digits than its factorization.

1285106406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7385703.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 1285106406 is about 35848.3808002537. The cubic root of 1285106406 is about 1087.2089765329.

The spelling of 1285106406 in words is "one billion, two hundred eighty-five million, one hundred six thousand, four hundred six".