4040407 has 16 divisors (see below), whose sum is σ = 5149440. Its totient is φ = 3086208.

The previous prime is 4040401. The next prime is 4040411. The reversal of 4040407 is 7040404.

It is a happy number.

It is not a de Polignac number, because 4040407 - 2⁷ = 4040279 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4040401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1368 + ... + 3154.

It is an arithmetic number, because the mean of its divisors is an integer number (321840).

Almost surely, 2^4040407 is an apocalyptic number.

4040407 is a deficient number, since it is larger than the sum of its proper divisors (1109033).

4040407 is a wasteful number, since it uses less digits than its factorization.

4040407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830.

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 4040407 is about 2010.0763667085. The cubic root of 4040407 is about 159.2728329950.

The spelling of 4040407 in words is "four million, forty thousand, four hundred seven".