34021404 has 24 divisors (see below), whose sum is σ = 88203920. Its totient is φ = 11340432.

The previous prime is 34021397. The next prime is 34021409. The reversal of 34021404 is 40412043.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34021409) 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, 157399 + ... + 157614.

Almost surely, 2^34021404 is an apocalyptic number.

It is an amenable number.

34021404 is an abundant number, since it is smaller than the sum of its proper divisors (54182516).

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

34021404 is a wasteful number, since it uses less digits than its factorization.

34021404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315026 (or 315018 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 34021404 is about 5832.7869839383. The cubic root of 34021404 is about 324.0291468978.

Adding to 34021404 its reverse (40412043), we get a palindrome (74433447).

The spelling of 34021404 in words is "thirty-four million, twenty-one thousand, four hundred four".