354021881 has 8 divisors (see below), whose sum is σ = 365465760. Its totient is φ = 342724032.

The previous prime is 354021841. The next prime is 354021887. The reversal of 354021881 is 188120453.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-354021881 is a prime.

It is a super-2 number, since 2×354021881² = 250662984453556322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (354021887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31571 + ... + 41288.

It is an arithmetic number, because the mean of its divisors is an integer number (45683220).

Almost surely, 2^354021881 is an apocalyptic number.

It is an amenable number.

354021881 is a deficient number, since it is larger than the sum of its proper divisors (11443879).

354021881 is a wasteful number, since it uses less digits than its factorization.

354021881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73015.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 354021881 is about 18815.4691942561. The cubic root of 354021881 is about 707.4189702720.

The spelling of 354021881 in words is "three hundred fifty-four million, twenty-one thousand, eight hundred eighty-one".