40599401 has 4 divisors (see below), whose sum is σ = 40720212. Its totient is φ = 40478592.

The previous prime is 40599373. The next prime is 40599421. The reversal of 40599401 is 10499504.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30030400 + 10569001 = 5480^2 + 3251^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40599401 is a prime.

It is a super-2 number, since 2×40599401² = 3296622723117602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40599421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59900 + ... + 60573.

It is an arithmetic number, because the mean of its divisors is an integer number (10180053).

Almost surely, 2^40599401 is an apocalyptic number.

It is an amenable number.

40599401 is a deficient number, since it is larger than the sum of its proper divisors (120811).

40599401 is a wasteful number, since it uses less digits than its factorization.

40599401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120810.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 40599401 is about 6371.7659247653. The cubic root of 40599401 is about 343.6949956729.

The spelling of 40599401 in words is "forty million, five hundred ninety-nine thousand, four hundred one".