40236672 has 64 divisors (see below), whose sum is σ = 122155200. Its totient is φ = 11495424.

The previous prime is 40236631. The next prime is 40236673. The reversal of 40236672 is 27663204.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (40236673) 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, 4797 + ... + 10172.

It is an arithmetic number, because the mean of its divisors is an integer number (1908675).

Almost surely, 2^40236672 is an apocalyptic number.

40236672 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

40236672 is an abundant number, since it is smaller than the sum of its proper divisors (81918528).

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

40236672 is a wasteful number, since it uses less digits than its factorization.

40236672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14993 (or 14981 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 40236672 is about 6343.2382897066. The cubic root of 40236672 is about 342.6683690980.

Adding to 40236672 its reverse (27663204), we get a palindrome (67899876).

The spelling of 40236672 in words is "forty million, two hundred thirty-six thousand, six hundred seventy-two".