909940086 has 72 divisors (see below), whose sum is σ = 2237132352. Its totient is φ = 266824800.

The previous prime is 909940063. The next prime is 909940121. The reversal of 909940086 is 680049909.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 60780 + ... + 74256.

Almost surely, 2^909940086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 909940086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1118566176).

909940086 is an abundant number, since it is smaller than the sum of its proper divisors (1327192266).

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

909940086 is a wasteful number, since it uses less digits than its factorization.

909940086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13538 (or 13524 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 909940086 is about 30165.2131767704. The cubic root of 909940086 is about 969.0308405550.

The spelling of 909940086 in words is "nine hundred nine million, nine hundred forty thousand, eighty-six".