850045401 has 8 divisors (see below), whose sum is σ = 1259326560. Its totient is φ = 566696916.

The previous prime is 850045387. The next prime is 850045409. The reversal of 850045401 is 104540058.

It is not a de Polignac number, because 850045401 - 2¹⁴ = 850029017 is a prime.

It is a super-2 number, since 2×850045401² = 1445154367522501602, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 31483163 = 850045401 / (8 + 5 + 0 + 0 + 4 + 5 + 4 + 0 + 1).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (850045409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15741555 + ... + 15741608.

It is an arithmetic number, because the mean of its divisors is an integer number (157415820).

Almost surely, 2^850045401 is an apocalyptic number.

It is an amenable number.

850045401 is a deficient number, since it is larger than the sum of its proper divisors (409281159).

850045401 is a wasteful number, since it uses less digits than its factorization.

850045401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31483172 (or 31483166 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 850045401 is about 29155.5380845561. The cubic root of 850045401 is about 947.2851023465.

Adding to 850045401 its reverse (104540058), we get a palindrome (954585459).

The spelling of 850045401 in words is "eight hundred fifty million, forty-five thousand, four hundred one".