354406816 has 24 divisors (see below), whose sum is σ = 728076384. Its totient is φ = 169498560.

The previous prime is 354406799. The next prime is 354406841. The reversal of 354406816 is 618604453.

It is a happy number.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240030 + ... + 241501.

It is an arithmetic number, because the mean of its divisors is an integer number (30336516).

Almost surely, 2^354406816 is an apocalyptic number.

It is an amenable number.

354406816 is an abundant number, since it is smaller than the sum of its proper divisors (373669568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

354406816 is a wasteful number, since it uses less digits than its factorization.

354406816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481564 (or 481556 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 354406816 is about 18825.6956312376. The cubic root of 354406816 is about 707.6752742834.

The spelling of 354406816 in words is "three hundred fifty-four million, four hundred six thousand, eight hundred sixteen".