34457421 has 4 divisors (see below), whose sum is σ = 45943232. Its totient is φ = 22971612.

The previous prime is 34457417. The next prime is 34457443. The reversal of 34457421 is 12475443.

34457421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 34457421 - 2² = 34457417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34457821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5742901 + ... + 5742906.

It is an arithmetic number, because the mean of its divisors is an integer number (11485808).

Almost surely, 2^34457421 is an apocalyptic number.

It is an amenable number.

34457421 is a deficient number, since it is larger than the sum of its proper divisors (11485811).

34457421 is a wasteful number, since it uses less digits than its factorization.

34457421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11485810.

The product of its digits is 13440, while the sum is 30.

The square root of 34457421 is about 5870.0443780265. The cubic root of 34457421 is about 325.4075234992.

Adding to 34457421 its sum of digits (30), we get a triangular number (34457451 = T₈₃₀₁).

The spelling of 34457421 in words is "thirty-four million, four hundred fifty-seven thousand, four hundred twenty-one".