850427136 has 108 divisors (see below), whose sum is σ = 2640698788. Its totient is φ = 261660672.

The previous prime is 850427113. The next prime is 850427141. The reversal of 850427136 is 631724058.

It can be written as a sum of positive squares in 2 ways, for example, as 526427136 + 324000000 = 22944^2 + 18000^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 850427136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15756 + ... + 44148.

Almost surely, 2^850427136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 850427136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1320349394).

850427136 is an abundant number, since it is smaller than the sum of its proper divisors (1790271652).

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

850427136 is a wasteful number, since it uses less digits than its factorization.

850427136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28428 (or 28411 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 850427136 is about 29162.0838761567. The cubic root of 850427136 is about 947.4268821311.

The spelling of 850427136 in words is "eight hundred fifty million, four hundred twenty-seven thousand, one hundred thirty-six".