854129850 has 96 divisors (see below), whose sum is σ = 2435844096. Its totient is φ = 194020800.

The previous prime is 854129849. The next prime is 854129873. The reversal of 854129850 is 58921458.

It is a happy number.

It is a super-2 number, since 2×854129850² = 1459075601322045000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 172915 + ... + 177785.

It is an arithmetic number, because the mean of its divisors is an integer number (25373376).

Almost surely, 2^854129850 is an apocalyptic number.

It is a pronic number, being equal to 29225×29226.

It is a practical number, because each smaller number is the sum of distinct divisors of 854129850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1217922048).

854129850 is an abundant number, since it is smaller than the sum of its proper divisors (1581714246).

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

854129850 is a wasteful number, since it uses less digits than its factorization.

854129850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5060 (or 5055 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 42.

The square root of 854129850 is about 29225.4999957229. The cubic root of 854129850 is about 948.7999065889.

The spelling of 854129850 in words is "eight hundred fifty-four million, one hundred twenty-nine thousand, eight hundred fifty".