840807132 has 48 divisors (see below), whose sum is σ = 2142467712. Its totient is φ = 254524480.

The previous prime is 840807089. The next prime is 840807137. The reversal of 840807132 is 231708048.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 840807093 and 840807102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840807137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150778 + ... + 156254.

It is an arithmetic number, because the mean of its divisors is an integer number (44634744).

Almost surely, 2^840807132 is an apocalyptic number.

It is an amenable number.

840807132 is an abundant number, since it is smaller than the sum of its proper divisors (1301660580).

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

840807132 is a wasteful number, since it uses less digits than its factorization.

840807132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6658 (or 6656 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 840807132 is about 28996.6744989835. The cubic root of 840807132 is about 943.8409058114.

The spelling of 840807132 in words is "eight hundred forty million, eight hundred seven thousand, one hundred thirty-two".