40117816 has 16 divisors (see below), whose sum is σ = 79180200. Its totient is φ = 19003104.

The previous prime is 40117811. The next prime is 40117829. The reversal of 40117816 is 61871104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40117811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131815 + ... + 132118.

Almost surely, 2^40117816 is an apocalyptic number.

It is an amenable number.

40117816 is a deficient number, since it is larger than the sum of its proper divisors (39062384).

40117816 is a wasteful number, since it uses less digits than its factorization.

40117816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263958 (or 263954 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 40117816 is about 6333.8626445480. The cubic root of 40117816 is about 342.3306310908.

The spelling of 40117816 in words is "forty million, one hundred seventeen thousand, eight hundred sixteen".