40183836 has 96 divisors (see below), whose sum is σ = 118067712. Its totient is φ = 10333440.

The previous prime is 40183823. The next prime is 40183837. The reversal of 40183836 is 63838104.

It is a super-2 number, since 2×40183836² = 3229481351349792, which contains 22 as substring.

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 = 40183797 and 40183806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40183837) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144930 + ... + 145206.

It is an arithmetic number, because the mean of its divisors is an integer number (1229872).

Almost surely, 2^40183836 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 40183836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59033856).

40183836 is an abundant number, since it is smaller than the sum of its proper divisors (77883876).

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

40183836 is a wasteful number, since it uses less digits than its factorization.

40183836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 40183836 is about 6339.0721718561. The cubic root of 40183836 is about 342.5183139727.

The spelling of 40183836 in words is "forty million, one hundred eighty-three thousand, eight hundred thirty-six".