354041021 has 8 divisors (see below), whose sum is σ = 362930040. Its totient is φ = 345261312.

The previous prime is 354040991. The next prime is 354041033. The reversal of 354041021 is 120140453.

It can be written as a sum of positive squares in 4 ways, for example, as 5808100 + 348232921 = 2410^2 + 18661^2 .

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 354041021 - 2¹⁰ = 354039997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 354040984 and 354041002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354041081) 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, 20750 + ... + 33743.

It is an arithmetic number, because the mean of its divisors is an integer number (45366255).

Almost surely, 2^354041021 is an apocalyptic number.

It is an amenable number.

354041021 is a deficient number, since it is larger than the sum of its proper divisors (8889019).

354041021 is an equidigital number, since it uses as much as digits as its factorization.

354041021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54655.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 354041021 is about 18815.9778114240. The cubic root of 354041021 is about 707.4317187825.

Adding to 354041021 its reverse (120140453), we get a palindrome (474181474).

The spelling of 354041021 in words is "three hundred fifty-four million, forty-one thousand, twenty-one".