354437421 has 8 divisors (see below), whose sum is σ = 508935840. Its totient is φ = 218115312.

The previous prime is 354437417. The next prime is 354437423. The reversal of 354437421 is 124734453.

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

It is not a de Polignac number, because 354437421 - 2² = 354437417 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354437423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4544031 + ... + 4544108.

It is an arithmetic number, because the mean of its divisors is an integer number (63616980).

Almost surely, 2^354437421 is an apocalyptic number.

It is an amenable number.

354437421 is a deficient number, since it is larger than the sum of its proper divisors (154498419).

354437421 is a wasteful number, since it uses less digits than its factorization.

354437421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9088155.

The product of its digits is 40320, while the sum is 33.

The square root of 354437421 is about 18826.5084654590. The cubic root of 354437421 is about 707.6956442626.

The spelling of 354437421 in words is "three hundred fifty-four million, four hundred thirty-seven thousand, four hundred twenty-one".