851449504 has 48 divisors (see below), whose sum is σ = 1705082400. Its totient is φ = 418477824.

The previous prime is 851449453. The next prime is 851449507. The reversal of 851449504 is 405944158.

It is not an unprimeable number, because it can be changed into a prime (851449507) 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, 475042 + ... + 476830.

It is an arithmetic number, because the mean of its divisors is an integer number (35522550).

Almost surely, 2^851449504 is an apocalyptic number.

It is an amenable number.

851449504 is an abundant number, since it is smaller than the sum of its proper divisors (853632896).

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

851449504 is a wasteful number, since it uses less digits than its factorization.

851449504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2045 (or 2037 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 851449504 is about 29179.6076738533. The cubic root of 851449504 is about 947.8063898682.

The spelling of 851449504 in words is "eight hundred fifty-one million, four hundred forty-nine thousand, five hundred four".