40183749 has 16 divisors (see below), whose sum is σ = 59773440. Its totient is φ = 26680320.

The previous prime is 40183747. The next prime is 40183751. The reversal of 40183749 is 94738104.

It is a happy number.

40183749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40183747) and next prime (40183751).

It is not a de Polignac number, because 40183749 - 2¹ = 40183747 is a prime.

It is a super-2 number, since 2×40183749² = 3229467367390002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40183747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4044 + ... + 9834.

It is an arithmetic number, because the mean of its divisors is an integer number (3735840).

Almost surely, 2^40183749 is an apocalyptic number.

It is an amenable number.

40183749 is a deficient number, since it is larger than the sum of its proper divisors (19589691).

40183749 is a wasteful number, since it uses less digits than its factorization.

40183749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6057 (or 6051 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 40183749 is about 6339.0653096494. The cubic root of 40183749 is about 342.5180667828.

The spelling of 40183749 in words is "forty million, one hundred eighty-three thousand, seven hundred forty-nine".