40720450 has 24 divisors (see below), whose sum is σ = 75990672. Its totient is φ = 16234320.

The previous prime is 40720447. The next prime is 40720507. The reversal of 40720450 is 5402704.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 16177 + ... + 18523.

It is an arithmetic number, because the mean of its divisors is an integer number (3166278).

Almost surely, 2^40720450 is an apocalyptic number.

40720450 is a deficient number, since it is larger than the sum of its proper divisors (35270222).

40720450 is a wasteful number, since it uses less digits than its factorization.

40720450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2706 (or 2701 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 40720450 is about 6381.2577130218. The cubic root of 40720450 is about 344.0362376193.

The spelling of 40720450 in words is "forty million, seven hundred twenty thousand, four hundred fifty".