40720910 has 8 divisors (see below), whose sum is σ = 73297656. Its totient is φ = 16288360.

The previous prime is 40720903. The next prime is 40720931. The reversal of 40720910 is 1902704.

40720910 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×40720910² = 3316385022456200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2036036 + ... + 2036055.

It is an arithmetic number, because the mean of its divisors is an integer number (9162207).

Almost surely, 2^40720910 is an apocalyptic number.

40720910 is a deficient number, since it is larger than the sum of its proper divisors (32576746).

40720910 is a wasteful number, since it uses less digits than its factorization.

40720910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4072098.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 40720910 is about 6381.2937559714. The cubic root of 40720910 is about 344.0375330870.

The spelling of 40720910 in words is "forty million, seven hundred twenty thousand, nine hundred ten".