851672290 has 192 divisors, whose sum is σ = 2058960384. Its totient is φ = 246951936.

The previous prime is 851672279. The next prime is 851672293. The reversal of 851672290 is 92276158.

It is not an unprimeable number, because it can be changed into a prime (851672293) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 23018152 + ... + 23018188.

It is an arithmetic number, because the mean of its divisors is an integer number (10723752).

Almost surely, 2^851672290 is an apocalyptic number.

851672290 is an abundant number, since it is smaller than the sum of its proper divisors (1207288094).

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

851672290 is a wasteful number, since it uses less digits than its factorization.

851672290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 851672290 is about 29183.4249189501. The cubic root of 851672290 is about 947.8890487455.

The spelling of 851672290 in words is "eight hundred fifty-one million, six hundred seventy-two thousand, two hundred ninety".