850842400 has 36 divisors (see below), whose sum is σ = 2077120962. Its totient is φ = 340336640.

The previous prime is 850842389. The next prime is 850842413. The reversal of 850842400 is 4248058.

It can be written as a sum of positive squares in 3 ways, for example, as 436475664 + 414366736 = 20892^2 + 20356^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 530977 + ... + 532576.

Almost surely, 2^850842400 is an apocalyptic number.

850842400 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

850842400 is an abundant number, since it is smaller than the sum of its proper divisors (1226278562).

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

850842400 is a wasteful number, since it uses less digits than its factorization.

850842400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063573 (or 1063560 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 850842400 is about 29169.2029373447. The cubic root of 850842400 is about 947.5810667127.

The spelling of 850842400 in words is "eight hundred fifty million, eight hundred forty-two thousand, four hundred".