34390404 has 36 divisors (see below), whose sum is σ = 89931660. Its totient is φ = 11067840.

The previous prime is 34390403. The next prime is 34390409. The reversal of 34390404 is 40409343.

It can be written as a sum of positive squares in 2 ways, for example, as 25100100 + 9290304 = 5010^2 + 3048^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34390403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15427 + ... + 17514.

Almost surely, 2^34390404 is an apocalyptic number.

It is an amenable number.

34390404 is an abundant number, since it is smaller than the sum of its proper divisors (55541256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34390404 is a wasteful number, since it uses less digits than its factorization.

34390404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32980 (or 32975 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 34390404 is about 5864.3332101783. Note that the first 3 decimals coincide. The cubic root of 34390404 is about 325.1964224858.

Adding to 34390404 its reverse (40409343), we get a palindrome (74799747).

The spelling of 34390404 in words is "thirty-four million, three hundred ninety thousand, four hundred four".