850552240 has 20 divisors (see below), whose sum is σ = 1977534144. Its totient is φ = 340220864.

The previous prime is 850552231. The next prime is 850552247. The reversal of 850552240 is 42255058.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×850552240² = 1446878225938035200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (850552247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5315872 + ... + 5316031.

Almost surely, 2^850552240 is an apocalyptic number.

850552240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

850552240 is an abundant number, since it is smaller than the sum of its proper divisors (1126981904).

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

850552240 is a wasteful number, since it uses less digits than its factorization.

850552240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10631916 (or 10631910 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 31.

The square root of 850552240 is about 29164.2287743050. The cubic root of 850552240 is about 947.4733376420.

The spelling of 850552240 in words is "eight hundred fifty million, five hundred fifty-two thousand, two hundred forty".