40047168 has 112 divisors (see below), whose sum is σ = 122895360. Its totient is φ = 11272704.

The previous prime is 40047157. The next prime is 40047169. The reversal of 40047168 is 86174004.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (40047169) 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, 111373 + ... + 111731.

It is an arithmetic number, because the mean of its divisors is an integer number (1097280).

Almost surely, 2^40047168 is an apocalyptic number.

40047168 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40047168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61447680).

40047168 is an abundant number, since it is smaller than the sum of its proper divisors (82848192).

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

40047168 is a wasteful number, since it uses less digits than its factorization.

40047168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 40047168 is about 6328.2831795045. The cubic root of 40047168 is about 342.1295634403.

The spelling of 40047168 in words is "forty million, forty-seven thousand, one hundred sixty-eight".