40238016 has 224 divisors, whose sum is σ = 136550400. Its totient is φ = 10386432.

The previous prime is 40237961. The next prime is 40238021. The reversal of 40238016 is 61083204.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 856105 + ... + 856151.

It is an arithmetic number, because the mean of its divisors is an integer number (609600).

Almost surely, 2^40238016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40238016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68275200).

40238016 is an abundant number, since it is smaller than the sum of its proper divisors (96312384).

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

40238016 is a wasteful number, since it uses less digits than its factorization.

40238016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 72 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 40238016 is about 6343.3442284019. The cubic root of 40238016 is about 342.6721843668.

The spelling of 40238016 in words is "forty million, two hundred thirty-eight thousand, sixteen".