354816729 has 12 divisors (see below), whose sum is σ = 519001600. Its totient is φ = 233549784.

The previous prime is 354816667. The next prime is 354816739. The reversal of 354816729 is 927618453.

It is not a de Polignac number, because 354816729 - 2¹³ = 354808537 is a prime.

It is a super-2 number, since 2×354816729² = 251789822356518882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (354816739) 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 11 ways as a sum of consecutive naturals, for example, 248809 + ... + 250230.

Almost surely, 2^354816729 is an apocalyptic number.

It is an amenable number.

354816729 is a deficient number, since it is larger than the sum of its proper divisors (164184871).

354816729 is a wasteful number, since it uses less digits than its factorization.

354816729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499124 (or 499121 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 354816729 is about 18836.5795461915. The cubic root of 354816729 is about 707.9480056139.

The spelling of 354816729 in words is "three hundred fifty-four million, eight hundred sixteen thousand, seven hundred twenty-nine".