40199841 has 16 divisors (see below), whose sum is σ = 64969920. Its totient is φ = 24363360.

The previous prime is 40199821. The next prime is 40199843. The reversal of 40199841 is 14899104.

It is not a de Polignac number, because 40199841 - 2²² = 36005537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40199796 and 40199805.

It is not an unprimeable number, because it can be changed into a prime (40199843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67380 + ... + 67973.

It is an arithmetic number, because the mean of its divisors is an integer number (4060620).

Almost surely, 2^40199841 is an apocalyptic number.

It is an amenable number.

40199841 is a deficient number, since it is larger than the sum of its proper divisors (24770079).

40199841 is a wasteful number, since it uses less digits than its factorization.

40199841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135373 (or 135367 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 40199841 is about 6340.3344549006. The cubic root of 40199841 is about 342.5637823210.

The spelling of 40199841 in words is "forty million, one hundred ninety-nine thousand, eight hundred forty-one".