40040401 has 8 divisors (see below), whose sum is σ = 42911424. Its totient is φ = 37263600.

The previous prime is 40040393. The next prime is 40040411. The reversal of 40040401 is 10404004.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 40040401 - 2³ = 40040393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40040411) 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, 22675 + ... + 24376.

It is an arithmetic number, because the mean of its divisors is an integer number (5363928).

Almost surely, 2^40040401 is an apocalyptic number.

It is an amenable number.

40040401 is a deficient number, since it is larger than the sum of its proper divisors (2871023).

40040401 is a wasteful number, since it uses less digits than its factorization.

40040401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47111.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 40040401 is about 6327.7484937377. The cubic root of 40040401 is about 342.1102918223.

Adding to 40040401 its reverse (10404004), we get a palindrome (50444405).

It can be divided in two parts, 400 and 40401, that multiplied together give a square (16160400 = 4020²).

The spelling of 40040401 in words is "forty million, forty thousand, four hundred one".