840152 has 8 divisors (see below), whose sum is σ = 1575300. Its totient is φ = 420072.

The previous prime is 840149. The next prime is 840163. The reversal of 840152 is 251048.

840152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52502 + ... + 52517.

2⁸⁴⁰¹⁵² is an apocalyptic number.

It is an amenable number.

840152 is a deficient number, since it is larger than the sum of its proper divisors (735148).

840152 is a wasteful number, since it uses less digits than its factorization.

840152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105025 (or 105021 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 840152 is about 916.5980580385. The cubic root of 840152 is about 94.3595704495.

The spelling of 840152 in words is "eight hundred forty thousand, one hundred fifty-two".