40236072 has 32 divisors (see below), whose sum is σ = 105885600. Its totient is φ = 12705984.

The previous prime is 40236041. The next prime is 40236073. The reversal of 40236072 is 27063204.

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

It is a zygodrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (40236073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43663 + ... + 44574.

It is an arithmetic number, because the mean of its divisors is an integer number (3308925).

Almost surely, 2^40236072 is an apocalyptic number.

It is an amenable number.

40236072 is an abundant number, since it is smaller than the sum of its proper divisors (65649528).

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

40236072 is a wasteful number, since it uses less digits than its factorization.

40236072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88265 (or 88261 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 40236072 is about 6343.1909950750. The cubic root of 40236072 is about 342.6666658255. Note that the first 5 decimals are identical.

Adding to 40236072 its reverse (27063204), we get a palindrome (67299276).

The spelling of 40236072 in words is "forty million, two hundred thirty-six thousand, seventy-two".