40720107 has 8 divisors (see below), whose sum is σ = 54347776. Its totient is φ = 27119592.

The previous prime is 40720087. The next prime is 40720129. The reversal of 40720107 is 70102704.

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

It is not a de Polignac number, because 40720107 - 2⁷ = 40719979 is a prime.

It is a super-2 number, since 2×40720107² = 3316254228182898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40720157) 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, 2983 + ... + 9504.

It is an arithmetic number, because the mean of its divisors is an integer number (6793472).

Almost surely, 2^40720107 is an apocalyptic number.

40720107 is a deficient number, since it is larger than the sum of its proper divisors (13627669).

40720107 is a wasteful number, since it uses less digits than its factorization.

40720107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13577.

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 40720107 is about 6381.2308373855. The cubic root of 40720107 is about 344.0352716447.

The spelling of 40720107 in words is "forty million, seven hundred twenty thousand, one hundred seven".