86342940 has 72 divisors (see below), whose sum is σ = 265535088. Its totient is φ = 22705920.

The previous prime is 86342939. The next prime is 86342951. The reversal of 86342940 is 4924368.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 86342895 and 86342904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9855 + ... + 16425.

Almost surely, 2^86342940 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 86342940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132767544).

86342940 is an abundant number, since it is smaller than the sum of its proper divisors (179192148).

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

86342940 is a wasteful number, since it uses less digits than its factorization.

86342940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6659 (or 6654 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 86342940 is about 9292.0901846678. The cubic root of 86342940 is about 441.9864385730.

The spelling of 86342940 in words is "eighty-six million, three hundred forty-two thousand, nine hundred forty".