853742124 has 72 divisors (see below), whose sum is σ = 2324562240. Its totient is φ = 263323872.

The previous prime is 853742119. The next prime is 853742147. The reversal of 853742124 is 421247358.

It is a happy number.

It is a super-2 number, since 2×853742124² = 1457751228584062752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14899 + ... + 43925.

Almost surely, 2^853742124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 853742124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1162281120).

853742124 is an abundant number, since it is smaller than the sum of its proper divisors (1470820116).

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

853742124 is a wasteful number, since it uses less digits than its factorization.

853742124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29099 (or 29094 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 853742124 is about 29218.8658917488. The cubic root of 853742124 is about 948.6563179330.

The spelling of 853742124 in words is "eight hundred fifty-three million, seven hundred forty-two thousand, one hundred twenty-four".