40272864 has 48 divisors (see below), whose sum is σ = 111939408. Its totient is φ = 12634112.

The previous prime is 40272863. The next prime is 40272877. The reversal of 40272864 is 46827204.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40272863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10707 + ... + 13970.

It is an arithmetic number, because the mean of its divisors is an integer number (2332071).

Almost surely, 2^40272864 is an apocalyptic number.

It is an amenable number.

40272864 is an abundant number, since it is smaller than the sum of its proper divisors (71666544).

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

40272864 is a wasteful number, since it uses less digits than its factorization.

40272864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24707 (or 24699 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 40272864 is about 6346.0904500330. The cubic root of 40272864 is about 342.7710791918.

The spelling of 40272864 in words is "forty million, two hundred seventy-two thousand, eight hundred sixty-four".