40944507 has 8 divisors (see below), whose sum is σ = 54738240. Its totient is φ = 27223560.

The previous prime is 40944413. The next prime is 40944509. The reversal of 40944507 is 70544904.

It is a happy number.

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

It is not a de Polignac number, because 40944507 - 2¹² = 40940411 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (40944509) 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, 16869 + ... + 19142.

It is an arithmetic number, because the mean of its divisors is an integer number (6842280).

Almost surely, 2^40944507 is an apocalyptic number.

40944507 is a deficient number, since it is larger than the sum of its proper divisors (13793733).

40944507 is a wasteful number, since it uses less digits than its factorization.

40944507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36393.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 40944507 is about 6398.7894948967. The cubic root of 40944507 is about 344.6660831317. Note that the first 3 decimals are identical.

The spelling of 40944507 in words is "forty million, nine hundred forty-four thousand, five hundred seven".