34040405 has 16 divisors (see below), whose sum is σ = 47026560. Its totient is φ = 23170752.

The previous prime is 34040401. The next prime is 34040423. The reversal of 34040405 is 50404043.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 34040405 - 2² = 34040401 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34040401) 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, 1367 + ... + 8363.

It is an arithmetic number, because the mean of its divisors is an integer number (2939160).

Almost surely, 2^34040405 is an apocalyptic number.

34040405 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

34040405 is a deficient number, since it is larger than the sum of its proper divisors (12986155).

34040405 is a wasteful number, since it uses less digits than its factorization.

34040405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7148.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 34040405 is about 5834.4155662757. The cubic root of 34040405 is about 324.0894592428.

Adding to 34040405 its reverse (50404043), we get a palindrome (84444448).

The spelling of 34040405 in words is "thirty-four million, forty thousand, four hundred five".