354649421 has 8 divisors (see below), whose sum is σ = 426646080. Its totient is φ = 287985888.

The previous prime is 354649411. The next prime is 354649441. The reversal of 354649421 is 124946453.

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

It is a de Polignac number, because none of the positive numbers 2^k-354649421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354649411) 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 7 ways as a sum of consecutive naturals, for example, 1333136 + ... + 1333401.

It is an arithmetic number, because the mean of its divisors is an integer number (53330760).

Almost surely, 2^354649421 is an apocalyptic number.

It is an amenable number.

354649421 is a deficient number, since it is larger than the sum of its proper divisors (71996659).

354649421 is a wasteful number, since it uses less digits than its factorization.

354649421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2666563.

The product of its digits is 103680, while the sum is 38.

The square root of 354649421 is about 18832.1379827145. The cubic root of 354649421 is about 707.8367143686.

The spelling of 354649421 in words is "three hundred fifty-four million, six hundred forty-nine thousand, four hundred twenty-one".