40503872 has 28 divisors (see below), whose sum is σ = 81898236. Its totient is φ = 19868160.

The previous prime is 40503871. The next prime is 40503901. The reversal of 40503872 is 27830504.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19855936 + 20647936 = 4456^2 + 4544^2 .

It is not an unprimeable number, because it can be changed into a prime (40503871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2579 + ... + 9362.

It is an arithmetic number, because the mean of its divisors is an integer number (2924937).

Almost surely, 2^40503872 is an apocalyptic number.

It is an amenable number.

40503872 is an abundant number, since it is smaller than the sum of its proper divisors (41394364).

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

40503872 is a wasteful number, since it uses less digits than its factorization.

40503872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12006 (or 11996 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 40503872 is about 6364.2652364590. The cubic root of 40503872 is about 343.4252164507.

It can be divided in two parts, 4050 and 3872, that multiplied together give a square (15681600 = 3960²).

The spelling of 40503872 in words is "forty million, five hundred three thousand, eight hundred seventy-two".