354808820 has 24 divisors (see below), whose sum is σ = 748889064. Its totient is φ = 141201536.

The previous prime is 354808801. The next prime is 354808837. The reversal of 354808820 is 28808453.

It can be written as a sum of positive squares in 4 ways, for example, as 129868816 + 224940004 = 11396^2 + 14998^2 .

It is a congruent number.

It is an unprimeable number.

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, 41087 + ... + 48966.

It is an arithmetic number, because the mean of its divisors is an integer number (31203711).

Almost surely, 2^354808820 is an apocalyptic number.

It is an amenable number.

354808820 is an abundant number, since it is smaller than the sum of its proper divisors (394080244).

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

354808820 is a wasteful number, since it uses less digits than its factorization.

354808820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90259 (or 90257 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 354808820 is about 18836.3696077562. The cubic root of 354808820 is about 707.9427454312.

The spelling of 354808820 in words is "three hundred fifty-four million, eight hundred eight thousand, eight hundred twenty".