354434021 has 8 divisors (see below), whose sum is σ = 358972224. Its totient is φ = 349917120.

The previous prime is 354434009. The next prime is 354434039. The reversal of 354434021 is 120434453.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 354434021 - 2¹⁸ = 354171877 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 (354434051) 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, 29606 + ... + 39816.

It is an arithmetic number, because the mean of its divisors is an integer number (44871528).

Almost surely, 2^354434021 is an apocalyptic number.

It is an amenable number.

354434021 is a deficient number, since it is larger than the sum of its proper divisors (4538203).

354434021 is a wasteful number, since it uses less digits than its factorization.

354434021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10651.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 354434021 is about 18826.4181670333. The cubic root of 354434021 is about 707.6933813592.

Adding to 354434021 its reverse (120434453), we get a palindrome (474868474).

The spelling of 354434021 in words is "three hundred fifty-four million, four hundred thirty-four thousand, twenty-one".