36843840 has 168 divisors, whose sum is σ = 138367008. Its totient is φ = 8924160.

The previous prime is 36843827. The next prime is 36843857. The reversal of 36843840 is 4834863.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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 = 36843795 and 36843804.

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, 31099 + ... + 32261.

Almost surely, 2^36843840 is an apocalyptic number.

36843840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36843840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69183504).

36843840 is an abundant number, since it is smaller than the sum of its proper divisors (101523168).

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

36843840 is a wasteful number, since it uses less digits than its factorization.

36843840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197 (or 1184 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 36843840 is about 6069.9126847097. The cubic root of 36843840 is about 332.7527315140.

The spelling of 36843840 in words is "thirty-six million, eight hundred forty-three thousand, eight hundred forty".