840259152 has 60 divisors (see below), whose sum is σ = 2369562624. Its totient is φ = 277942080.

The previous prime is 840259151. The next prime is 840259163. The reversal of 840259152 is 251952048.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840259151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3408 + ... + 41135.

Almost surely, 2^840259152 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 840259152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1184781312).

840259152 is an abundant number, since it is smaller than the sum of its proper divisors (1529303472).

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

840259152 is a wasteful number, since it uses less digits than its factorization.

840259152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44688 (or 44679 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 840259152 is about 28987.2239443518. The cubic root of 840259152 is about 943.6358178190.

The spelling of 840259152 in words is "eight hundred forty million, two hundred fifty-nine thousand, one hundred fifty-two".