40184019 has 20 divisors (see below), whose sum is σ = 60274456. Its totient is φ = 26679456.

The previous prime is 40184009. The next prime is 40184047. The reversal of 40184019 is 91048104.

It is not a de Polignac number, because 40184019 - 2⁴ = 40184003 is a prime.

It is a super-2 number, since 2×40184019² = 3229510765984722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40183983 and 40184001.

It is not an unprimeable number, because it can be changed into a prime (40184009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 22047 + ... + 23799.

Almost surely, 2^40184019 is an apocalyptic number.

40184019 is a deficient number, since it is larger than the sum of its proper divisors (20090437).

40184019 is a wasteful number, since it uses less digits than its factorization.

40184019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2048 (or 2039 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 40184019 is about 6339.0866061287. The cubic root of 40184019 is about 342.5188339227.

The spelling of 40184019 in words is "forty million, one hundred eighty-four thousand, nineteen".